chore(3p): Clean up unused third-party packages r/2328

Removes the following currently unused packages:

* terraform-gcp
* cpp.googleapis
* nixery

Change-Id: I02c38f0e6d23b1b9008706ca5a3b9db51cc9b689
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2650
Tested-by: BuildkiteCI
Reviewed-by: sterni <sternenseemann@systemli.org>
Reviewed-by: glittershark <grfn@gws.fyi>

79 files changed, 0 insertions, 3842 deletions

diff --git a/bin/__dispatch.sh b/bin/__dispatch.sh
index 4aba74158c..a4fa75358d 100755
--- a/bin/__dispatch.sh
+++ b/bin/__dispatch.sh
@@ -52,9 +52,6 @@ case "${TARGET_TOOL}" in
   stern)
     attr="third_party.stern"
     ;;
-  terraform)
-    attr="third_party.terraform-gcp"
-    ;;
   *)
     echo "The tool '${TARGET_TOOL}' is currently not installed in this repository."
     exit 1
diff --git a/bin/terraform b/bin/terraform
deleted file mode 120000
index 8390ec9c96..0000000000
--- a/bin/terraform
+++ /dev/null
@@ -1 +0,0 @@
-__dispatch.sh
\ No newline at end of file
diff --git a/third_party/cpp/googleapis/.cmake-format.py b/third_party/cpp/googleapis/.cmake-format.py
deleted file mode 100644
index f6ceafc1aa..0000000000
--- a/third_party/cpp/googleapis/.cmake-format.py
+++ /dev/null
@@ -1,42 +0,0 @@
-# Copyright 2019 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-tab_size = 4
-separate_ctrl_name_with_space = True
-
-additional_commands = {
-    "externalproject_add": {
-        "flags": [
-        ],
-        "kwargs": {
-            "BUILD_COMMAND": "+",
-            "BUILD_BYPRODUCTS": "+",
-            "CMAKE_ARGS": "+",
-            "COMMAND": "+",
-            "CONFIGURE_COMMAND": "+",
-            "DEPENDS": "+",
-            "DOWNLOAD_COMMAND": "+",
-            "EXCLUDE_FROM_ALL": 1,
-            "INSTALL_COMMAND": "+",
-            "INSTALL_DIR": 1,
-            "LOG_BUILD": 1,
-            "LOG_CONFIGURE": 1,
-            "LOG_DOWNLOAD": 1,
-            "LOG_INSTALL": 1,
-            "PREFIX": 1,
-            "URL": 1,
-            "URL_HASH": 1,
-        }
-    }
-}
diff --git a/third_party/cpp/googleapis/.dockerignore b/third_party/cpp/googleapis/.dockerignore
deleted file mode 100644
index 4b7b2c0bd2..0000000000
--- a/third_party/cpp/googleapis/.dockerignore
+++ /dev/null
@@ -1,22 +0,0 @@
-# Common build output directory names
-.build/
-_build/
-build-output/
-cmake-out/
-
-# Common bazel output directories
-bazel-*
-
-# Backup files for Emacs
-*~
-
-# Ignore IDEA / IntelliJ files
-.idea/
-cmake-build-*/
-
-# This is a staging directory used to upload the documents to gihub.io
-github-io-staging/
-
-# Ignore Visual Studio Code files
-.vsbuild/
-.vscode/
diff --git a/third_party/cpp/googleapis/.editorconfig b/third_party/cpp/googleapis/.editorconfig
deleted file mode 100644
index 0983572c65..0000000000
--- a/third_party/cpp/googleapis/.editorconfig
+++ /dev/null
@@ -1,22 +0,0 @@
-# http://editorconfig.org
-
-root = true
-
-[*]
-charset = utf-8
-indent_style = space
-
-[BUILD]
-indent_size = 4
-
-[CMakeLists.*]
-indent_size = 4
-
-[*.h,*.cc]
-indent_size = 2
-
-[*.md]
-indent_size = 2
-
-[*.sh]
-indent_size = 2
diff --git a/third_party/cpp/googleapis/.gitignore b/third_party/cpp/googleapis/.gitignore
deleted file mode 100644
index 4b7b2c0bd2..0000000000
--- a/third_party/cpp/googleapis/.gitignore
+++ /dev/null
@@ -1,22 +0,0 @@
-# Common build output directory names
-.build/
-_build/
-build-output/
-cmake-out/
-
-# Common bazel output directories
-bazel-*
-
-# Backup files for Emacs
-*~
-
-# Ignore IDEA / IntelliJ files
-.idea/
-cmake-build-*/
-
-# This is a staging directory used to upload the documents to gihub.io
-github-io-staging/
-
-# Ignore Visual Studio Code files
-.vsbuild/
-.vscode/
diff --git a/third_party/cpp/googleapis/CMakeLists.txt b/third_party/cpp/googleapis/CMakeLists.txt
deleted file mode 100644
index 90db9c71d8..0000000000
--- a/third_party/cpp/googleapis/CMakeLists.txt
+++ /dev/null
@@ -1,521 +0,0 @@
-# ~~~
-# Copyright 2019 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-# ~~~
-
-cmake_minimum_required(VERSION 3.5)
-
-# Define the project name and where to report bugs.
-set(PACKAGE_BUGREPORT "https://github.com/googleapis/google-cloud-cpp/issues")
-project(googleapis-cpp-protos CXX C)
-
-set(GOOGLEAPIS_CPP_PROTOS_VERSION_MAJOR 0)
-set(GOOGLEAPIS_CPP_PROTOS_VERSION_MINOR 5)
-set(GOOGLEAPIS_CPP_PROTOS_VERSION_PATCH 0)
-
-string(
-    CONCAT GOOGLE_APIS_CPP_PROTOS_VERSION
-           "${GOOGLEAPIS_CPP_PROTOS_VERSION_MAJOR}"
-           "."
-           "${GOOGLEAPIS_CPP_PROTOS_VERSION_MINOR}"
-           "."
-           "${GOOGLEAPIS_CPP_PROTOS_VERSION_PATCH}")
-
-# Configure the compiler options, we will be using C++11 features.
-set(CMAKE_CXX_STANDARD 11)
-set(CMAKE_CXX_STANDARD_REQUIRED ON)
-
-set(GOOGLEAPIS_CPP_SOURCE
-    "${CMAKE_BINARY_DIR}/external/googleapis/src/googleapis_download")
-
-set(GOOGLEAPIS_CPP_PROTO_FILES
-    "google/api/http.proto"
-    "google/api/annotations.proto"
-    "google/api/auth.proto"
-    "google/api/client.proto"
-    "google/api/field_behavior.proto"
-    "google/api/label.proto"
-    "google/api/launch_stage.proto"
-    "google/api/metric.proto"
-    "google/api/monitored_resource.proto"
-    "google/api/resource.proto"
-    "google/devtools/cloudtrace/v2/trace.proto"
-    "google/devtools/cloudtrace/v2/tracing.proto"
-    "google/type/expr.proto"
-    "google/rpc/error_details.proto"
-    "google/rpc/status.proto"
-    "google/iam/v1/options.proto"
-    "google/iam/v1/policy.proto"
-    "google/iam/v1/iam_policy.proto"
-    "google/longrunning/operations.proto"
-    "google/bigtable/admin/v2/bigtable_instance_admin.proto"
-    "google/bigtable/admin/v2/bigtable_table_admin.proto"
-    "google/bigtable/admin/v2/common.proto"
-    "google/bigtable/admin/v2/instance.proto"
-    "google/bigtable/admin/v2/table.proto"
-    "google/bigtable/v2/bigtable.proto"
-    "google/bigtable/v2/data.proto"
-    "google/cloud/bigquery/connection/v1beta1/connection.proto"
-    "google/cloud/bigquery/datatransfer/v1/datatransfer.proto"
-    "google/cloud/bigquery/datatransfer/v1/transfer.proto"
-    "google/cloud/bigquery/logging/v1/audit_data.proto"
-    "google/cloud/bigquery/storage/v1beta1/arrow.proto"
-    "google/cloud/bigquery/storage/v1beta1/avro.proto"
-    "google/cloud/bigquery/storage/v1beta1/read_options.proto"
-    "google/cloud/bigquery/storage/v1beta1/storage.proto"
-    "google/cloud/bigquery/storage/v1beta1/table_reference.proto"
-    "google/cloud/bigquery/v2/encryption_config.proto"
-    "google/cloud/bigquery/v2/model.proto"
-    "google/cloud/bigquery/v2/model_reference.proto"
-    "google/cloud/bigquery/v2/standard_sql.proto"
-    "google/pubsub/v1/pubsub.proto"
-    "google/spanner/admin/database/v1/spanner_database_admin.proto"
-    "google/spanner/admin/instance/v1/spanner_instance_admin.proto"
-    "google/spanner/v1/keys.proto"
-    "google/spanner/v1/mutation.proto"
-    "google/spanner/v1/query_plan.proto"
-    "google/spanner/v1/result_set.proto"
-    "google/spanner/v1/spanner.proto"
-    "google/spanner/v1/transaction.proto"
-    "google/spanner/v1/type.proto"
-    "google/storage/v1/storage.proto"
-    "google/storage/v1/storage_resources.proto"
-    "google/logging/type/http_request.proto"
-    "google/logging/type/log_severity.proto"
-    "google/logging/v2/log_entry.proto"
-    "google/logging/v2/logging.proto"
-    "google/logging/v2/logging_config.proto"
-    "google/logging/v2/logging_metrics.proto"
-)
-
-set(GOOGLEAPIS_CPP_BYPRODUCTS)
-foreach (proto ${GOOGLEAPIS_CPP_PROTO_FILES})
-    list(APPEND GOOGLEAPIS_CPP_BYPRODUCTS "${GOOGLEAPIS_CPP_SOURCE}/${proto}")
-endforeach ()
-
-include(ExternalProject)
-ExternalProject_Add(
-    googleapis_download
-    EXCLUDE_FROM_ALL ON
-    PREFIX "${CMAKE_BINARY_DIR}/external/googleapis"
-    URL $ENV{GOOGLEAPIS_DIR}
-    CONFIGURE_COMMAND ""
-    BUILD_COMMAND ""
-    INSTALL_COMMAND ""
-    BUILD_BYPRODUCTS ${GOOGLEAPIS_CPP_BYPRODUCTS}
-    LOG_DOWNLOAD OFF)
-
-list(APPEND CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/cmake")
-find_package(ProtobufTargets REQUIRED)
-find_package(gRPC REQUIRED)
-
-# Define the project name and where to report bugs.
-set(PACKAGE_BUGREPORT "https://github.com/googleapis/google-cloud-cpp/issues")
-project(googleapis-cpp-protos CXX C)
-
-set(GOOGLEAPIS_CPP_PROTOS_VERSION_MAJOR 0)
-set(GOOGLEAPIS_CPP_PROTOS_VERSION_MINOR 5)
-set(GOOGLEAPIS_CPP_PROTOS_VERSION_PATCH 0)
-
-string(
-    CONCAT GOOGLE_APIS_CPP_PROTOS_VERSION
-           "${GOOGLEAPIS_CPP_PROTOS_VERSION_MAJOR}"
-           "."
-           "${GOOGLEAPIS_CPP_PROTOS_VERSION_MINOR}"
-           "."
-           "${GOOGLEAPIS_CPP_PROTOS_VERSION_PATCH}")
-
-# Sometimes (this happens often with vcpkg) protobuf is installed in a non-
-# standard directory. We need to find out where, and then add that directory to
-# the search path for protos.
-find_path(PROTO_INCLUDE_DIR google/protobuf/descriptor.proto)
-if (PROTO_INCLUDE_DIR)
-    list(INSERT PROTOBUF_IMPORT_DIRS 0 "${PROTO_INCLUDE_DIR}")
-endif ()
-
-add_library(googleapis_cpp_common_flags INTERFACE)
-
-include(SelectMSVCRuntime)
-
-# Include the functions to compile proto files.
-include(CompileProtos)
-
-google_cloud_cpp_add_protos_property()
-
-function (googleapis_cpp_short_name var proto)
-    string(REPLACE "google/" "" short_name "${proto}")
-    string(REPLACE "/" "_" short_name "${short_name}")
-    string(REPLACE ".proto" "_protos" short_name "${short_name}")
-    set("${var}"
-        "${short_name}"
-        PARENT_SCOPE)
-endfunction ()
-
-# Create a single source proto library.
-#
-# * proto: the filename for the proto source.
-# * (optional) ARGN: proto libraries the new library depends on.
-function (googleapis_cpp_add_library proto)
-    googleapis_cpp_short_name(short_name "${proto}")
-    google_cloud_cpp_grpcpp_library(
-        googleapis_cpp_${short_name} "${GOOGLEAPIS_CPP_SOURCE}/${proto}"
-        PROTO_PATH_DIRECTORIES "${GOOGLEAPIS_CPP_SOURCE}"
-        "${PROTO_INCLUDE_DIR}")
-
-    googleapis_cpp_set_version_and_alias("${short_name}")
-
-    set(public_deps)
-    foreach (dep_short_name ${ARGN})
-        list(APPEND public_deps "googleapis-c++::${dep_short_name}")
-    endforeach ()
-    list(LENGTH public_deps public_deps_length)
-    if (public_deps_length EQUAL 0)
-        target_link_libraries("googleapis_cpp_${short_name}"
-                              PRIVATE googleapis_cpp_common_flags)
-    else ()
-        target_link_libraries(
-            "googleapis_cpp_${short_name}"
-            PUBLIC ${public_deps}
-            PRIVATE googleapis_cpp_common_flags)
-    endif ()
-endfunction ()
-
-function (googleapis_cpp_set_version_and_alias short_name)
-    add_dependencies("googleapis_cpp_${short_name}" googleapis_download)
-    set_target_properties(
-        "googleapis_cpp_${short_name}"
-        PROPERTIES VERSION "${GOOGLE_APIS_CPP_PROTOS_VERSION}"
-                   SOVERSION ${GOOGLEAPIS_CPP_PROTOS_VERSION_MAJOR})
-    add_library("googleapis-c++::${short_name}" ALIAS
-                "googleapis_cpp_${short_name}")
-endfunction ()
-
-googleapis_cpp_add_library("google/api/http.proto")
-googleapis_cpp_add_library("google/api/metric.proto" api_launch_stage_protos
-                           api_label_protos)
-googleapis_cpp_add_library("google/api/monitored_resource.proto"
-                           api_launch_stage_protos api_label_protos)
-googleapis_cpp_add_library("google/api/annotations.proto" api_http_protos)
-googleapis_cpp_add_library("google/api/auth.proto" api_annotations_protos)
-googleapis_cpp_add_library("google/api/client.proto")
-googleapis_cpp_add_library("google/api/distribution.proto" api_distribution_protos)
-googleapis_cpp_add_library("google/api/field_behavior.proto")
-googleapis_cpp_add_library("google/api/label.proto")
-googleapis_cpp_add_library("google/api/launch_stage.proto")
-googleapis_cpp_add_library("google/api/resource.proto")
-
-googleapis_cpp_add_library("google/type/expr.proto")
-
-googleapis_cpp_add_library("google/rpc/error_details.proto")
-googleapis_cpp_add_library("google/rpc/status.proto" rpc_error_details_protos)
-
-googleapis_cpp_add_library("google/iam/v1/options.proto" api_annotations_protos)
-googleapis_cpp_add_library("google/iam/v1/policy.proto" api_annotations_protos
-                           type_expr_protos)
-
-googleapis_cpp_add_library(
-    "google/iam/v1/iam_policy.proto"
-    api_annotations_protos
-    api_client_protos
-    api_field_behavior_protos
-    api_resource_protos
-    iam_v1_options_protos
-    iam_v1_policy_protos)
-
-googleapis_cpp_add_library(
-    "google/longrunning/operations.proto" api_annotations_protos
-    api_client_protos rpc_status_protos)
-
-googleapis_cpp_add_library(
-    "google/devtools/cloudtrace/v2/trace.proto" api_annotations_protos
-    api_field_behavior_protos api_resource_protos rpc_status_protos)
-googleapis_cpp_add_library(
-    "google/devtools/cloudtrace/v2/tracing.proto"
-    devtools_cloudtrace_v2_trace_protos api_annotations_protos
-    api_client_protos api_field_behavior_protos rpc_status_protos)
-
-google_cloud_cpp_grpcpp_library(
-    googleapis_cpp_cloud_bigquery_protos
-    "${GOOGLEAPIS_CPP_SOURCE}/google/cloud/bigquery/connection/v1beta1/connection.proto"
-    "${GOOGLEAPIS_CPP_SOURCE}/google/cloud/bigquery/datatransfer/v1/datatransfer.proto"
-    "${GOOGLEAPIS_CPP_SOURCE}/google/cloud/bigquery/datatransfer/v1/transfer.proto"
-    "${GOOGLEAPIS_CPP_SOURCE}/google/cloud/bigquery/logging/v1/audit_data.proto"
-    "${GOOGLEAPIS_CPP_SOURCE}/google/cloud/bigquery/storage/v1beta1/arrow.proto"
-    "${GOOGLEAPIS_CPP_SOURCE}/google/cloud/bigquery/storage/v1beta1/avro.proto"
-    "${GOOGLEAPIS_CPP_SOURCE}/google/cloud/bigquery/storage/v1beta1/read_options.proto"
-    "${GOOGLEAPIS_CPP_SOURCE}/google/cloud/bigquery/storage/v1beta1/storage.proto"
-    "${GOOGLEAPIS_CPP_SOURCE}/google/cloud/bigquery/storage/v1beta1/table_reference.proto"
-    "${GOOGLEAPIS_CPP_SOURCE}/google/cloud/bigquery/v2/encryption_config.proto"
-    "${GOOGLEAPIS_CPP_SOURCE}/google/cloud/bigquery/v2/model.proto"
-    "${GOOGLEAPIS_CPP_SOURCE}/google/cloud/bigquery/v2/model_reference.proto"
-    "${GOOGLEAPIS_CPP_SOURCE}/google/cloud/bigquery/v2/standard_sql.proto"
-    PROTO_PATH_DIRECTORIES
-    "${GOOGLEAPIS_CPP_SOURCE}"
-    "${PROTO_INCLUDE_DIR}")
-googleapis_cpp_set_version_and_alias(cloud_bigquery_protos)
-target_link_libraries(
-    googleapis_cpp_cloud_bigquery_protos
-    PUBLIC googleapis-c++::api_annotations_protos
-           googleapis-c++::api_client_protos
-           googleapis-c++::api_field_behavior_protos
-           googleapis-c++::api_resource_protos
-           googleapis-c++::iam_v1_iam_policy_protos
-           googleapis-c++::iam_v1_policy_protos
-           googleapis-c++::rpc_status_protos
-           googleapis-c++::api_http_protos
-    PRIVATE googleapis_cpp_common_flags)
-
-google_cloud_cpp_grpcpp_library(
-    googleapis_cpp_bigtable_protos
-    "${GOOGLEAPIS_CPP_SOURCE}/google/bigtable/admin/v2/bigtable_instance_admin.proto"
-    "${GOOGLEAPIS_CPP_SOURCE}/google/bigtable/admin/v2/bigtable_table_admin.proto"
-    "${GOOGLEAPIS_CPP_SOURCE}/google/bigtable/admin/v2/common.proto"
-    "${GOOGLEAPIS_CPP_SOURCE}/google/bigtable/admin/v2/instance.proto"
-    "${GOOGLEAPIS_CPP_SOURCE}/google/bigtable/admin/v2/table.proto"
-    "${GOOGLEAPIS_CPP_SOURCE}/google/bigtable/v2/bigtable.proto"
-    "${GOOGLEAPIS_CPP_SOURCE}/google/bigtable/v2/data.proto"
-    PROTO_PATH_DIRECTORIES
-    "${GOOGLEAPIS_CPP_SOURCE}"
-    "${PROTO_INCLUDE_DIR}")
-googleapis_cpp_set_version_and_alias(bigtable_protos)
-target_link_libraries(
-    googleapis_cpp_bigtable_protos
-    PUBLIC googleapis-c++::api_annotations_protos
-           googleapis-c++::api_client_protos
-           googleapis-c++::api_field_behavior_protos
-           googleapis-c++::api_resource_protos
-           googleapis-c++::iam_v1_iam_policy_protos
-           googleapis-c++::iam_v1_policy_protos
-           googleapis-c++::longrunning_operations_protos
-           googleapis-c++::rpc_status_protos
-           googleapis-c++::api_auth_protos
-    PRIVATE googleapis_cpp_common_flags)
-
-google_cloud_cpp_grpcpp_library(
-    googleapis_cpp_pubsub_protos
-    "${GOOGLEAPIS_CPP_SOURCE}/google/pubsub/v1/pubsub.proto"
-    PROTO_PATH_DIRECTORIES "${GOOGLEAPIS_CPP_SOURCE}" "${PROTO_INCLUDE_DIR}")
-googleapis_cpp_set_version_and_alias(pubsub_protos)
-target_link_libraries(
-    googleapis_cpp_pubsub_protos
-    PUBLIC googleapis-c++::api_annotations_protos
-           googleapis-c++::api_client_protos
-           googleapis-c++::api_field_behavior_protos
-           googleapis-c++::api_resource_protos
-    PRIVATE googleapis_cpp_common_flags)
-
-google_cloud_cpp_grpcpp_library(
-    googleapis_cpp_spanner_protos
-    "${GOOGLEAPIS_CPP_SOURCE}/google/spanner/admin/database/v1/spanner_database_admin.proto"
-    "${GOOGLEAPIS_CPP_SOURCE}/google/spanner/admin/instance/v1/spanner_instance_admin.proto"
-    "${GOOGLEAPIS_CPP_SOURCE}/google/spanner/v1/keys.proto"
-    "${GOOGLEAPIS_CPP_SOURCE}/google/spanner/v1/mutation.proto"
-    "${GOOGLEAPIS_CPP_SOURCE}/google/spanner/v1/query_plan.proto"
-    "${GOOGLEAPIS_CPP_SOURCE}/google/spanner/v1/result_set.proto"
-    "${GOOGLEAPIS_CPP_SOURCE}/google/spanner/v1/spanner.proto"
-    "${GOOGLEAPIS_CPP_SOURCE}/google/spanner/v1/transaction.proto"
-    "${GOOGLEAPIS_CPP_SOURCE}/google/spanner/v1/type.proto"
-    PROTO_PATH_DIRECTORIES
-    "${GOOGLEAPIS_CPP_SOURCE}"
-    "${PROTO_INCLUDE_DIR}")
-googleapis_cpp_set_version_and_alias(spanner_protos)
-target_link_libraries(
-    googleapis_cpp_spanner_protos
-    PUBLIC googleapis-c++::api_annotations_protos
-           googleapis-c++::api_client_protos
-           googleapis-c++::api_field_behavior_protos
-           googleapis-c++::api_resource_protos
-           googleapis-c++::iam_v1_iam_policy_protos
-           googleapis-c++::iam_v1_policy_protos
-           googleapis-c++::longrunning_operations_protos
-           googleapis-c++::rpc_status_protos
-    PRIVATE googleapis_cpp_common_flags)
-
-google_cloud_cpp_grpcpp_library(
-    googleapis_cpp_storage_protos
-    "${GOOGLEAPIS_CPP_SOURCE}/google/storage/v1/storage.proto"
-    "${GOOGLEAPIS_CPP_SOURCE}/google/storage/v1/storage_resources.proto"
-    PROTO_PATH_DIRECTORIES
-    "${GOOGLEAPIS_CPP_SOURCE}"
-    "${PROTO_INCLUDE_DIR}")
-googleapis_cpp_set_version_and_alias(storage_protos)
-target_link_libraries(
-    googleapis_cpp_storage_protos
-    PUBLIC googleapis-c++::api_annotations_protos
-           googleapis-c++::api_client_protos
-           googleapis-c++::api_field_behavior_protos
-           googleapis-c++::iam_v1_iam_policy_protos
-           googleapis-c++::iam_v1_policy_protos
-    PRIVATE googleapis_cpp_common_flags)
-
-google_cloud_cpp_grpcpp_library(
-    googleapis_cpp_logging_protos
-    "${GOOGLEAPIS_CPP_SOURCE}/google/logging/type/http_request.proto"
-    "${GOOGLEAPIS_CPP_SOURCE}/google/logging/type/log_severity.proto"
-    "${GOOGLEAPIS_CPP_SOURCE}/google/logging/v2/log_entry.proto"
-    "${GOOGLEAPIS_CPP_SOURCE}/google/logging/v2/logging.proto"
-    "${GOOGLEAPIS_CPP_SOURCE}/google/logging/v2/logging_config.proto"
-    "${GOOGLEAPIS_CPP_SOURCE}/google/logging/v2/logging_metrics.proto"
-    PROTO_PATH_DIRECTORIES
-    "${GOOGLEAPIS_CPP_SOURCE}"
-    "${PROTO_INCLUDE_DIR}")
-
-googleapis_cpp_set_version_and_alias(logging_protos)
-
-target_link_libraries(
-    googleapis_cpp_logging_protos
-    # TODO
-    PUBLIC googleapis-c++::api_annotations_protos
-           googleapis-c++::api_distribution_protos
-    PRIVATE googleapis_cpp_common_flags)
-
-# Install the libraries and headers in the locations determined by
-# GNUInstallDirs
-include(GNUInstallDirs)
-
-set(googleapis_cpp_installed_libraries_list
-    googleapis_cpp_bigtable_protos
-    googleapis_cpp_cloud_bigquery_protos
-    googleapis_cpp_pubsub_protos
-    googleapis_cpp_spanner_protos
-    googleapis_cpp_storage_protos
-    googleapis_cpp_logging_protos
-    googleapis_cpp_longrunning_operations_protos
-    googleapis_cpp_api_http_protos
-    googleapis_cpp_api_annotations_protos
-    googleapis_cpp_api_distribution_protos
-    googleapis_cpp_api_auth_protos
-    googleapis_cpp_api_client_protos
-    googleapis_cpp_api_field_behavior_protos
-    googleapis_cpp_api_resource_protos
-    googleapis_cpp_devtools_cloudtrace_v2_trace_protos
-    googleapis_cpp_devtools_cloudtrace_v2_tracing_protos
-    googleapis_cpp_iam_v1_options_protos
-    googleapis_cpp_iam_v1_policy_protos
-    googleapis_cpp_iam_v1_iam_policy_protos
-    googleapis_cpp_rpc_error_details_protos
-    googleapis_cpp_rpc_status_protos
-    googleapis_cpp_type_expr_protos)
-
-install(
-    TARGETS ${googleapis_cpp_installed_libraries_list}
-            googleapis_cpp_common_flags
-    EXPORT googleapis-targets
-    RUNTIME DESTINATION bin
-    LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
-    ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR})
-
-foreach (target ${googleapis_cpp_installed_libraries_list})
-    google_cloud_cpp_install_proto_library_headers("${target}")
-    google_cloud_cpp_install_proto_library_protos("${target}"
-                                                  "${GOOGLEAPIS_CPP_SOURCE}")
-endforeach ()
-
-# Export the CMake targets to make it easy to create configuration files.
-install(EXPORT googleapis-targets
-        DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/googleapis")
-
-# Setup global variables used in the following *.in files.
-set(GOOGLE_CLOUD_CPP_CONFIG_VERSION_MAJOR
-    ${GOOGLEAPIS_CPP_PROTOS_VERSION_MAJOR})
-set(GOOGLE_CLOUD_CPP_CONFIG_VERSION_MINOR
-    ${GOOGLEAPIS_CPP_PROTOS_VERSION_MINOR})
-set(GOOGLE_CLOUD_CPP_CONFIG_VERSION_PATCH
-    ${GOOGLEAPIS_CPP_PROTOS_VERSION_PATCH})
-
-# Use a function to create a scope for the variables.
-function (googleapis_cpp_install_pc target)
-    string(REPLACE "googleapis_cpp_" "" _short_name ${target})
-    string(REPLACE "_protos" "" _short_name ${_short_name})
-    set(GOOGLE_CLOUD_CPP_PC_NAME
-        "The Google APIS C++ ${_short_name} Proto Library")
-    set(GOOGLE_CLOUD_CPP_PC_DESCRIPTION "Compiled proto for C++.")
-    # Examine the target LINK_LIBRARIES property, use that to pull the
-    # dependencies between the googleapis-c++::* libraries.
-    set(_target_pc_requires)
-    get_target_property(_target_deps ${target} LINK_LIBRARIES)
-    foreach (dep ${_target_deps})
-        if ("${dep}" MATCHES "^googleapis-c\\+\\+::")
-            string(REPLACE "googleapis-c++::" "googleapis_cpp_" dep "${dep}")
-            list(APPEND _target_pc_requires " " "${dep}")
-        endif ()
-    endforeach ()
-    # These dependencies are required for all the googleapis-c++::* libraries.
-    list(
-        APPEND
-        _target_pc_requires
-        " grpc++"
-        " grpc"
-        " openssl"
-        " protobuf"
-        " zlib"
-        " libcares")
-    string(CONCAT GOOGLE_CLOUD_CPP_PC_REQUIRES ${_target_pc_requires})
-    set(GOOGLE_CLOUD_CPP_PC_LIBS "-l${target}")
-    configure_file("cmake/config.pc.in" "${target}.pc" @ONLY)
-    install(FILES "${CMAKE_CURRENT_BINARY_DIR}/${target}.pc"
-            DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig")
-endfunction ()
-
-# Create and install the pkg-config files.
-foreach (target ${googleapis_cpp_installed_libraries_list})
-    googleapis_cpp_install_pc("${target}")
-endforeach ()
-
-# Create and install the googleapis pkg-config file for backwards compatibility.
-set(GOOGLE_CLOUD_CPP_PC_NAME "The Google APIS C++ Proto Library")
-set(GOOGLE_CLOUD_CPP_PC_DESCRIPTION
-    "Provides C++ APIs to access Google Cloud Platforms.")
-# Note the use of spaces, `string(JOIN)` is not available in cmake-3.5, so we
-# need to add the separator ourselves.
-string(
-    CONCAT GOOGLE_CLOUD_CPP_PC_REQUIRES
-           "googleapis_cpp_bigtable_protos"
-           " googleapis_cpp_cloud_bigquery_protos"
-           " googleapis_pubsub_protos"
-           " googleapis_cpp_storage_protos"
-           " googleapis_cpp_iam_v1_iam_policy_protos"
-           " googleapis_cpp_iam_v1_options_protos"
-           " googleapis_cpp_iam_v1_policy_protos"
-           " googleapis_cpp_logging_protos"
-           " googleapis_cpp_longrunning_operations_protos"
-           " googleapis_cpp_api_auth_protos"
-           " googleapis_cpp_api_annotations_protos"
-           " googleapis_cpp_api_client_protos"
-           " googleapis_cpp_api_field_behavior_protos"
-           " googleapis_cpp_api_http_protos"
-           " googleapis_cpp_rpc_status_protos"
-           " googleapis_cpp_rpc_error_details_protos"
-           " grpc++"
-           " grpc"
-           " openssl"
-           " protobuf"
-           " zlib"
-           " libcares")
-set(GOOGLE_CLOUD_CPP_PC_LIBS "")
-configure_file("cmake/config.pc.in" "googleapis.pc" @ONLY)
-install(FILES "${CMAKE_CURRENT_BINARY_DIR}/googleapis.pc"
-        DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig")
-
-# Create and install the CMake configuration files.
-configure_file("cmake/config.cmake.in" "googleapis-config.cmake" @ONLY)
-configure_file("cmake/config-version.cmake.in"
-               "googleapis-config-version.cmake" @ONLY)
-install(
-    FILES "${CMAKE_CURRENT_BINARY_DIR}/googleapis-config.cmake"
-          "${CMAKE_CURRENT_BINARY_DIR}/googleapis-config-version.cmake"
-          "${PROJECT_SOURCE_DIR}/cmake/FindgRPC.cmake"
-          "${PROJECT_SOURCE_DIR}/cmake/FindProtobufTargets.cmake"
-          "${PROJECT_SOURCE_DIR}/cmake/CompileProtos.cmake"
-    DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/googleapis")
diff --git a/third_party/cpp/googleapis/CONTRIBUTING.md b/third_party/cpp/googleapis/CONTRIBUTING.md
deleted file mode 100644
index 33497a3798..0000000000
--- a/third_party/cpp/googleapis/CONTRIBUTING.md
+++ /dev/null
@@ -1,55 +0,0 @@
-# How to become a contributor and submit your own code
-
-## Contributor License Agreements
-
-We'd love to accept your patches! Before we can take them, we
-have to jump a couple of legal hurdles.
-
-Please fill out either the individual or corporate Contributor License Agreement
-(CLA).
-
-  * If you are an individual writing original source code and you're sure you
-    own the intellectual property, then you'll need to sign an
-    [individual CLA](https://developers.google.com/open-source/cla/individual).
-  * If you work for a company that wants to allow you to contribute your work,
-    then you'll need to sign a
-    [corporate CLA](https://developers.google.com/open-source/cla/corporate).
-
-Follow either of the two links above to access the appropriate CLA and
-instructions for how to sign and return it. Once we receive it, we'll be able to
-accept your pull requests.
-
-## Contributing A Patch
-
-1. Submit an issue describing your proposed change to the repo in question.
-1. The repo owner will respond to your issue promptly.
-1. If your proposed change is accepted, and you haven't already done so, sign a
-   Contributor License Agreement (see details above).
-1. Fork the desired repo, develop and test your code changes.
-1. Ensure that your code adheres to the existing style in the sample to which
-   you are contributing.
-1. Ensure that your code has an appropriate set of unit tests which all pass.
-1. Submit a pull request.
-
-## Style
-
-This repository follow the [Google C++ Style Guide](
-https://google.github.io/styleguide/cppguide.html).
-Please make sure your contributions adhere to the style guide.
-
-### Formatting
-
-The code in this project is formatted with `clang-format(1)`, and our CI builds
-will check that the code matches the format generated by this tool before
-accepting a pull request. Please configure your editor or IDE to use the Google
-style for indentation and other whitespace. If you need to reformat one or more
-files, you can simply run `clang-format` manually:
-
-```console
-$ clang-format -i <file>....
-```
-
-If you need to reformat one of the files to match the Google style.  Please be
-advised that `clang-format` has been known to generate slightly different
-formatting in different versions. We use version 7; use the same version if you
-run into problems.
diff --git a/third_party/cpp/googleapis/LICENSE b/third_party/cpp/googleapis/LICENSE
deleted file mode 100644
index 261eeb9e9f..0000000000
--- a/third_party/cpp/googleapis/LICENSE
+++ /dev/null
@@ -1,201 +0,0 @@
-                                 Apache License
-                           Version 2.0, January 2004
-                        http://www.apache.org/licenses/
-
-   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
-
-   1. Definitions.
-
-      "License" shall mean the terms and conditions for use, reproduction,
-      and distribution as defined by Sections 1 through 9 of this document.
-
-      "Licensor" shall mean the copyright owner or entity authorized by
-      the copyright owner that is granting the License.
-
-      "Legal Entity" shall mean the union of the acting entity and all
-      other entities that control, are controlled by, or are under common
-      control with that entity. For the purposes of this definition,
-      "control" means (i) the power, direct or indirect, to cause the
-      direction or management of such entity, whether by contract or
-      otherwise, or (ii) ownership of fifty percent (50%) or more of the
-      outstanding shares, or (iii) beneficial ownership of such entity.
-
-      "You" (or "Your") shall mean an individual or Legal Entity
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-      transformation or translation of a Source form, including but
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-      You may add Your own copyright statement to Your modifications and
-      may provide additional or different license terms and conditions
-      for use, reproduction, or distribution of Your modifications, or
-      for any such Derivative Works as a whole, provided Your use,
-      reproduction, and distribution of the Work otherwise complies with
-      the conditions stated in this License.
-
-   5. Submission of Contributions. Unless You explicitly state otherwise,
-      any Contribution intentionally submitted for inclusion in the Work
-      by You to the Licensor shall be under the terms and conditions of
-      this License, without any additional terms or conditions.
-      Notwithstanding the above, nothing herein shall supersede or modify
-      the terms of any separate license agreement you may have executed
-      with Licensor regarding such Contributions.
-
-   6. Trademarks. This License does not grant permission to use the trade
-      names, trademarks, service marks, or product names of the Licensor,
-      except as required for reasonable and customary use in describing the
-      origin of the Work and reproducing the content of the NOTICE file.
-
-   7. Disclaimer of Warranty. Unless required by applicable law or
-      agreed to in writing, Licensor provides the Work (and each
-      Contributor provides its Contributions) on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
-      implied, including, without limitation, any warranties or conditions
-      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
-      PARTICULAR PURPOSE. You are solely responsible for determining the
-      appropriateness of using or redistributing the Work and assume any
-      risks associated with Your exercise of permissions under this License.
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-   8. Limitation of Liability. In no event and under no legal theory,
-      whether in tort (including negligence), contract, or otherwise,
-      unless required by applicable law (such as deliberate and grossly
-      negligent acts) or agreed to in writing, shall any Contributor be
-      liable to You for damages, including any direct, indirect, special,
-      incidental, or consequential damages of any character arising as a
-      result of this License or out of the use or inability to use the
-      Work (including but not limited to damages for loss of goodwill,
-      work stoppage, computer failure or malfunction, or any and all
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-   9. Accepting Warranty or Additional Liability. While redistributing
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-      incurred by, or claims asserted against, such Contributor by reason
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-   END OF TERMS AND CONDITIONS
-
-   APPENDIX: How to apply the Apache License to your work.
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-      To apply the Apache License to your work, attach the following
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-   Copyright [yyyy] [name of copyright owner]
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-   Licensed under the Apache License, Version 2.0 (the "License");
-   you may not use this file except in compliance with the License.
-   You may obtain a copy of the License at
-
-       http://www.apache.org/licenses/LICENSE-2.0
-
-   Unless required by applicable law or agreed to in writing, software
-   distributed under the License is distributed on an "AS IS" BASIS,
-   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-   See the License for the specific language governing permissions and
-   limitations under the License.
diff --git a/third_party/cpp/googleapis/README.md b/third_party/cpp/googleapis/README.md
deleted file mode 100644
index 5c2a711938..0000000000
--- a/third_party/cpp/googleapis/README.md
+++ /dev/null
@@ -1,68 +0,0 @@
-# Google Cloud Platform C++ Proto Libraries
-
-Compile the protocol buffer definitions into C++ libraries.
-
-## Requirements
-
-#### Compiler
-
-The Google Cloud C++ libraries are tested with the following compilers:
-
-| Compiler    | Minimum Version |
-| ----------- | --------------- |
-| GCC         | 4.8 |
-| Clang       | 3.8 |
-| MSVC++      | 14.1 |
-| Apple Clang | 8.1 |
-
-#### Build Tools
-
-The Google Cloud C++ Client Libraries can be built with
-[CMake](https://cmake.org) or [Bazel](https://bazel.io).  The minimal versions
-of these tools we test with are:
-
-| Tool       | Minimum Version |
-| ---------- | --------------- |
-| CMake      | 3.5 |
-| Bazel      | 0.24.0 |
-
-#### Libraries
-
-The libraries also depend on gRPC, libcurl, and the dependencies of those
-libraries. The Google Cloud C++ Client libraries are tested with the following
-versions of these dependencies:
-
-| Library | Minimum version |
-| ------- | --------------- |
-| gRPC    | v1.16.x |
-| libcurl | 7.47.0  |
-
-
-## Versioning
-
-Please note that the Google Cloud C++ client libraries do **not** follow
-[Semantic Versioning](http://semver.org/).
-
-**GA**: Libraries defined at a GA quality level are expected to be stable and
-any backwards-incompatible changes will be noted in the documentation. Major
-changes to the API will signaled by changing major version number
-(e.g. 1.x.y -> 2.0.0).
-
-**Beta**: Libraries defined at a Beta quality level are expected to be mostly
-stable and we're working towards their release candidate. We will address issues
-and requests with a higher priority.
-
-**Alpha**: Libraries defined at an Alpha quality level are still a
-work-in-progress and are more likely to get backwards-incompatible updates.
-Additionally, it's possible for Alpha libraries to get deprecated and deleted
-before ever being promoted to Beta or GA.
-
-## Contributing changes
-
-See [`CONTRIBUTING.md`](CONTRIBUTING.md) for details on how to contribute to
-this project, including how to build and test your changes as well as how to
-properly format your code.
-
-## Licensing
-
-Apache 2.0; see [`LICENSE`](LICENSE) for details.
diff --git a/third_party/cpp/googleapis/ci/check-style.sh b/third_party/cpp/googleapis/ci/check-style.sh
deleted file mode 100755
index 9fe61bf034..0000000000
--- a/third_party/cpp/googleapis/ci/check-style.sh
+++ /dev/null
@@ -1,81 +0,0 @@
-#!/usr/bin/env bash
-# Copyright 2019 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-set -eu
-
-if [[ "${CHECK_STYLE}" != "yes" ]]; then
-  echo "Skipping code style check as it is disabled for this build."
-  exit 0
-fi
-
-# This script assumes it is running the top-level google-cloud-cpp directory.
-
-readonly BINDIR="$(dirname "$0")"
-
-# Build paths to ignore in find(1) commands by reading .gitignore.
-declare -a ignore=( -path ./.git )
-if [[ -f .gitignore ]]; then
-  while read -r line; do
-    case "${line}" in
-    [^#]*/*) ignore+=( -o -path "./$(expr "${line}" : '\(.*\)/')" ) ;;
-    [^#]*)   ignore+=( -o -name "${line}" ) ;;
-    esac
-  done < .gitignore
-fi
-
-replace_original_if_changed() {
-  if [[ $# != 2 ]]; then
-    return 1
-  fi
-
-  local original="$1"
-  local reformatted="$2"
-
-  if cmp -s "${original}" "${reformatted}"; then
-    rm -f "${reformatted}"
-  else
-    chmod --reference="${original}" "${reformatted}"
-    mv -f "${reformatted}" "${original}"
-  fi
-}
-
-# Apply cmake_format to all the CMake list files.
-#     https://github.com/cheshirekow/cmake_format
-find . \( "${ignore[@]}" \) -prune -o \
-       \( -name 'CMakeLists.txt' -o -name '*.cmake' \) \
-       -print0 |
-  while IFS= read -r -d $'\0' file; do
-    cmake-format "${file}" >"${file}.tmp"
-    replace_original_if_changed "${file}" "${file}.tmp"
-  done
-
-# Apply buildifier to fix the BUILD and .bzl formatting rules.
-#    https://github.com/bazelbuild/buildtools/tree/master/buildifier
-find . \( "${ignore[@]}" \) -prune -o \
-       \( -name BUILD -o -name '*.bzl' \) \
-       -print0 |
-  xargs -0 buildifier -mode=fix
-
-# Apply shellcheck(1) to emit warnings for common scripting mistakes.
-find . \( "${ignore[@]}" \) -prune -o \
-       -iname '*.sh' -exec shellcheck \
-         --exclude=SC1090 \
-         --exclude=SC2034 \
-         --exclude=SC2153 \
-         --exclude=SC2181 \
-       '{}' \;
-
-# Report any differences created by running the formatting tools.
-git diff --ignore-submodules=all --color --exit-code .
diff --git a/third_party/cpp/googleapis/ci/colors.sh b/third_party/cpp/googleapis/ci/colors.sh
deleted file mode 100755
index 23acd8e03d..0000000000
--- a/third_party/cpp/googleapis/ci/colors.sh
+++ /dev/null
@@ -1,28 +0,0 @@
-#!/usr/bin/env bash
-# Copyright 2019 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-if [ -z "${COLOR_RESET+x}" ]; then
-  if type tput >/dev/null 2>&1; then
-    readonly COLOR_RED="$(tput setaf 1)"
-    readonly COLOR_GREEN="$(tput setaf 2)"
-    readonly COLOR_YELLOW="$(tput setaf 3)"
-    readonly COLOR_RESET="$(tput sgr0)"
-  else
-    readonly COLOR_RED=""
-    readonly COLOR_GREEN=""
-    readonly COLOR_YELLOW=""
-    readonly COLOR_RESET=""
-  fi
-fi
diff --git a/third_party/cpp/googleapis/ci/install-grpc.sh b/third_party/cpp/googleapis/ci/install-grpc.sh
deleted file mode 100755
index 759b355bb5..0000000000
--- a/third_party/cpp/googleapis/ci/install-grpc.sh
+++ /dev/null
@@ -1,41 +0,0 @@
-#!/usr/bin/env bash
-# Copyright 2019 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-set -eu
-
-mkdir -p /var/tmp/Downloads
-cd /var/tmp/Downloads
-
-# Install protobuf
-wget -q https://github.com/google/protobuf/archive/v3.8.0.tar.gz
-tar -xf v3.8.0.tar.gz
-(cd protobuf-3.8.0/cmake;
- cmake \
-   -DCMAKE_BUILD_TYPE=Release \
-   -DBUILD_SHARED_LIBS=yes \
-   -Dprotobuf_BUILD_TESTS=OFF \
-   -H. -Bcmake-out
- cmake --build cmake-out --target install -- -j "$(nproc)"
- ldconfig
-)
-
-# Install grpc
-wget -q https://github.com/grpc/grpc/archive/v1.22.0.tar.gz
-tar -xf v1.22.0.tar.gz
-(cd grpc-1.22.0;
- make -j "$(nproc)"
- make install
- ldconfig
-)
diff --git a/third_party/cpp/googleapis/ci/kokoro/Dockerfile.centos b/third_party/cpp/googleapis/ci/kokoro/Dockerfile.centos
deleted file mode 100644
index 2982dae0e1..0000000000
--- a/third_party/cpp/googleapis/ci/kokoro/Dockerfile.centos
+++ /dev/null
@@ -1,51 +0,0 @@
-# Copyright 2019 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-ARG DISTRO_VERSION=7
-FROM centos:${DISTRO_VERSION}
-
-# Add /usr/local/lib
-
-# Search paths tweak for the build
-ENV PKG_CONFIG_PATH=/usr/local/lib/pkgconfig:/usr/local/lib64/pkgconfig
-ENV LD_LIBRARY_PATH=/usr/local/lib:/usr/local/lib64
-ENV PATH=/usr/local/bin:${PATH}
-
-# First install the development tools and OpenSSL. The development tools
-# distributed with CentOS (notably CMake) are too old to build
-# `google-cloud-cpp`. In these instructions, we use `cmake3` obtained from
-# [Software Collections](https://www.softwarecollections.org/).
-
-RUN rpm -Uvh https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
-RUN yum install -y centos-release-scl
-RUN yum-config-manager --enable rhel-server-rhscl-7-rpms
-RUN yum makecache && \
-    yum install -y automake cmake3 curl-devel gcc gcc-c++ git libtool \
-        make openssl-devel pkgconfig tar wget which zlib-devel
-RUN ln -sf /usr/bin/cmake3 /usr/bin/cmake && ln -sf /usr/bin/ctest3 /usr/bin/ctest
-
-# Install c-ares
-RUN mkdir -p /var/tmp/Downloads; \
-    cd /var/tmp/Downloads; \
-    wget -q https://github.com/c-ares/c-ares/archive/cares-1_15_0.tar.gz; \
-    tar -xf cares-1_15_0.tar.gz; \
-    cd /var/tmp/Downloads/c-ares-cares-1_15_0; \
-    ./buildconf && ./configure && make -j $(nproc); \
-    make install; \
-    ldconfig
-
-# Install grpc from source
-WORKDIR /var/tmp/ci
-COPY install-grpc.sh /var/tmp/ci
-RUN /var/tmp/ci/install-grpc.sh
diff --git a/third_party/cpp/googleapis/ci/kokoro/Dockerfile.fedora b/third_party/cpp/googleapis/ci/kokoro/Dockerfile.fedora
deleted file mode 100644
index c56ace3b1a..0000000000
--- a/third_party/cpp/googleapis/ci/kokoro/Dockerfile.fedora
+++ /dev/null
@@ -1,38 +0,0 @@
-# Copyright 2019 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-ARG DISTRO_VERSION=30
-FROM fedora:${DISTRO_VERSION}
-
-# Fedora includes packages for gRPC, libcurl, and OpenSSL that are recent enough
-# for `google-cloud-cpp`. Install these packages and additional development
-# tools to compile the dependencies:
-RUN dnf makecache && \
-    dnf install -y clang clang-tools-extra cmake doxygen findutils gcc-c++ git \
-        grpc-devel grpc-plugins libcxx-devel libcxxabi-devel libcurl-devel \
-        make openssl-devel pkgconfig protobuf-compiler python-pip ShellCheck \
-        tar wget zlib-devel
-
-# Install the the buildifier tool, which does not compile with the default
-# golang compiler for Ubuntu 16.04 and Ubuntu 18.04.
-RUN wget -q -O /usr/bin/buildifier https://github.com/bazelbuild/buildtools/releases/download/0.17.2/buildifier
-RUN chmod 755 /usr/bin/buildifier
-
-# Install cmake_format to automatically format the CMake list files.
-#     https://github.com/cheshirekow/cmake_format
-# Pin this to an specific version because the formatting changes when the
-# "latest" version is updated, and we do not want the builds to break just
-# because some third party changed something.
-RUN pip install --upgrade pip
-RUN pip install numpy cmake_format==0.6.9
diff --git a/third_party/cpp/googleapis/ci/kokoro/Dockerfile.ubuntu-16.04 b/third_party/cpp/googleapis/ci/kokoro/Dockerfile.ubuntu-16.04
deleted file mode 100644
index 8ef65dd9b2..0000000000
--- a/third_party/cpp/googleapis/ci/kokoro/Dockerfile.ubuntu-16.04
+++ /dev/null
@@ -1,53 +0,0 @@
-# Copyright 2019 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-FROM ubuntu:16.04
-
-RUN apt update && \
-    apt install -y \
-        automake \
-        build-essential \
-        clang \
-        cmake \
-        curl \
-        doxygen \
-        gawk \
-        git \
-        gcc \
-        golang \
-        g++ \
-        libssl-dev \
-        libtool \
-        make \
-        ninja-build \
-        pkg-config \
-        python-pip \
-        shellcheck \
-        tar \
-        unzip \
-        wget \
-        zlib1g-dev
-
-WORKDIR /var/tmp/Downloads
-RUN wget -q https://github.com/c-ares/c-ares/archive/cares-1_15_0.tar.gz && \
-    tar -xf cares-1_15_0.tar.gz && \
-    cd /var/tmp/Downloads/c-ares-cares-1_15_0 && \
-    ./buildconf && ./configure && make -j $(nproc) && \
-    make install && \
-    ldconfig
-
-# Install grpc from source
-WORKDIR /var/tmp/ci
-COPY install-grpc.sh /var/tmp/ci
-RUN /var/tmp/ci/install-grpc.sh
diff --git a/third_party/cpp/googleapis/ci/kokoro/Dockerfile.ubuntu-18.04 b/third_party/cpp/googleapis/ci/kokoro/Dockerfile.ubuntu-18.04
deleted file mode 100644
index d3660dafa2..0000000000
--- a/third_party/cpp/googleapis/ci/kokoro/Dockerfile.ubuntu-18.04
+++ /dev/null
@@ -1,45 +0,0 @@
-# Copyright 2019 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-FROM ubuntu:18.04
-
-RUN apt update && \
-    apt install -y \
-        build-essential \
-        clang \
-        cmake \
-        curl \
-        doxygen \
-        gawk \
-        git \
-        gcc \
-        golang \
-        g++ \
-        libc-ares-dev \
-        libc-ares2 \
-        libssl-dev \
-        make \
-        ninja-build \
-        pkg-config \
-        python-pip \
-        shellcheck \
-        tar \
-        unzip \
-        wget \
-        zlib1g-dev
-
-# Install grpc from source
-WORKDIR /var/tmp/ci
-COPY install-grpc.sh /var/tmp/ci
-RUN /var/tmp/ci/install-grpc.sh
diff --git a/third_party/cpp/googleapis/ci/kokoro/docker/build-in-docker-cmake.sh b/third_party/cpp/googleapis/ci/kokoro/docker/build-in-docker-cmake.sh
deleted file mode 100755
index 4dd9e7eb3d..0000000000
--- a/third_party/cpp/googleapis/ci/kokoro/docker/build-in-docker-cmake.sh
+++ /dev/null
@@ -1,112 +0,0 @@
-#!/usr/bin/env bash
-# Copyright 2019 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-set -eu
-
-if [[ $# != 2 ]]; then
-  echo "Usage: $(basename "$0") <source-directory> <binary-directory>"
-  exit 1
-fi
-
-readonly SOURCE_DIR="$1"
-readonly BINARY_DIR="$2"
-
-# This script is supposed to run inside a Docker container, see
-# ci/kokoro/cmake/installed-dependencies/build.sh for the expected setup.  The
-# /v directory is a volume pointing to a (clean-ish) checkout of the project:
-if [[ -z "${PROJECT_ROOT+x}" ]]; then
-  readonly PROJECT_ROOT="/v"
-fi
-source "${PROJECT_ROOT}/ci/colors.sh"
-
-echo
-echo "${COLOR_YELLOW}Starting docker build $(date) with $(nproc) cores${COLOR_RESET}"
-echo
-
-echo "================================================================"
-echo "Verify formatting $(date)"
-(cd "${PROJECT_ROOT}" ; ./ci/check-style.sh)
-echo "================================================================"
-
-echo "================================================================"
-echo "Compiling on $(date)"
-echo "================================================================"
-cd "${PROJECT_ROOT}"
-cmake_flags=()
-if [[ "${CLANG_TIDY:-}" = "yes" ]]; then
-  cmake_flags+=("-DGOOGLE_CLOUD_CPP_CLANG_TIDY=yes")
-fi
-if [[ "${GOOGLE_CLOUD_CPP_CXX_STANDARD:-}" != "" ]]; then
-  cmake_flags+=(
-    "-DGOOGLE_CLOUD_CPP_CXX_STANDARD=${GOOGLE_CLOUD_CPP_CXX_STANDARD}")
-fi
-
-if [[ "${CODE_COVERAGE:-}" == "yes" ]]; then
-  cmake_flags+=(
-    "-DCMAKE_BUILD_TYPE=Coverage")
-fi
-
-if [[ "${USE_NINJA:-}" == "yes" ]]; then
-  cmake_flags+=( "-GNinja" )
-fi
-
-# Avoid unbound variable error with older bash
-if [[ "${#cmake_flags[@]}" == 0 ]]; then
-  cmake "-H${SOURCE_DIR}" "-B${BINARY_DIR}"
-else
-  cmake "-H${SOURCE_DIR}" "-B${BINARY_DIR}" "${cmake_flags[@]}"
-fi
-cmake --build "${BINARY_DIR}" -- -j "$(nproc)"
-
-# When user a super-build the tests are hidden in a subdirectory. We can tell
-# that ${BINARY_DIR} does not have the tests by checking for this file:
-if [[ -r "${BINARY_DIR}/CTestTestfile.cmake" ]]; then
-  echo "================================================================"
-  # It is Okay to skip the tests in this case because the super build
-  # automatically runs them.
-  echo "Running the unit tests $(date)"
-  env -C "${BINARY_DIR}" ctest \
-      -LE integration-tests \
-      --output-on-failure -j "$(nproc)"
-  echo "================================================================"
-fi
-
-if [[ "${GENERATE_DOCS:-}" = "yes" ]]; then
-  echo "================================================================"
-  echo "Validate Doxygen documentation $(date)"
-  cmake --build "${BINARY_DIR}" --target doxygen-docs
-  echo "================================================================"
-fi
-
-if [[ ${RUN_INTEGRATION_TESTS} == "yes" ]]; then
-  echo "================================================================"
-  echo "Running the integration tests $(date)"
-  echo "================================================================"
-  # shellcheck disable=SC1091
-  source /c/spanner-integration-tests-config.sh
-  export GOOGLE_APPLICATION_CREDENTIALS=/c/spanner-credentials.json
-
-  # Run the integration tests too.
-  env -C "${BINARY_DIR}" ctest \
-      -L integration-tests \
-      --output-on-failure
-  echo "================================================================"
-fi
-
-echo "================================================================"
-echo "Build finished at $(date)"
-echo "================================================================"
-
-exit 0
diff --git a/third_party/cpp/googleapis/ci/kokoro/docker/build.sh b/third_party/cpp/googleapis/ci/kokoro/docker/build.sh
deleted file mode 100755
index fbd886f028..0000000000
--- a/third_party/cpp/googleapis/ci/kokoro/docker/build.sh
+++ /dev/null
@@ -1,272 +0,0 @@
-#!/usr/bin/env bash
-# Copyright 2019 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-set -eu
-
-export CC=gcc
-export CXX=g++
-export DISTRO=ubuntu
-export DISTRO_VERSION=18.04
-export CMAKE_SOURCE_DIR="."
-
-in_docker_script="ci/kokoro/docker/build-in-docker-cmake.sh"
-
-if [[ $# -eq 1 ]]; then
-  export BUILD_NAME="${1}"
-elif [[ -n "${KOKORO_JOB_NAME:-}" ]]; then
-  # Kokoro injects the KOKORO_JOB_NAME environment variable, the value of this
-  # variable is cloud-cpp/spanner/<config-file-name-without-cfg> (or more
-  # generally <path/to/config-file-without-cfg>). By convention we name these
-  # files `$foo.cfg` for continuous builds and `$foo-presubmit.cfg` for
-  # presubmit builds. Here we extract the value of "foo" and use it as the build
-  # name.
-  BUILD_NAME="$(basename "${KOKORO_JOB_NAME}" "-presubmit")"
-  export BUILD_NAME
-else
-  echo "Aborting build as the build name is not defined."
-  echo "If you are invoking this script via the command line use:"
-  echo "    $0 <build-name>"
-  echo
-  echo "If this script is invoked by Kokoro, the CI system is expected to set"
-  echo "the KOKORO_JOB_NAME environment variable."
-  exit 1
-fi
-
-if [[ "${BUILD_NAME}" = "clang-tidy" ]]; then
-  # Compile with clang-tidy(1) turned on. The build treats clang-tidy warnings
-  # as errors.
-  export DISTRO=fedora
-  export DISTRO_VERSION=30
-  export CC=clang
-  export CXX=clang++
-  export CHECK_STYLE=yes
-  export CLANG_TIDY=yes
-elif [[ "${BUILD_NAME}" = "ubuntu-18.04" ]]; then
-  export CC=gcc
-  export CXX=g++
-elif [[ "${BUILD_NAME}" = "ubuntu-16.04" ]]; then
-  export DISTRO_VERSION=16.04
-  export CC=gcc
-  export CXX=g++
-elif [[ "${BUILD_NAME}" = "gcc-4.8" ]]; then
-  # The oldest version of GCC we support is 4.8, this build checks the code
-  # against that version. The use of CentOS 7 for that build is not a
-  # coincidence: the reason we support GCC 4.8 is to support this distribution
-  # (and its commercial cousin: RHEL 7).
-  export CC=gcc
-  export CXX=g++
-  export DISTRO=centos
-  export DISTRO_VERSION=7
-elif [[ "${BUILD_NAME}" = "clang-3.8" ]]; then
-  # The oldest version of Clang we actively test is 3.8. There is nothing
-  # particularly interesting about that version. It is simply the version
-  # included with Ubuntu:16.04, and the oldest version tested by
-  # google-cloud-cpp.
-  export DISTRO=ubuntu
-  export DISTRO_VERSION=16.04
-  export CC=clang
-  export CXX=clang++
-elif [[ "${BUILD_NAME}" = "ninja" ]]; then
-  # Compiling with Ninja can catch bugs that may not be caught using Make.
-  export USE_NINJA=yes
-else
-  echo "Unknown BUILD_NAME (${BUILD_NAME}). Fix the Kokoro .cfg file."
-  exit 1
-fi
-
-if [[ -z "${PROJECT_ROOT+x}" ]]; then
-  readonly PROJECT_ROOT="$(cd "$(dirname "$0")/../../.."; pwd)"
-fi
-
-if [[ -z "${PROJECT_ID+x}" ]]; then
-  readonly PROJECT_ID="cloud-devrel-kokoro-resources"
-fi
-
-# Determine the image name.
-readonly IMAGE="gcr.io/${PROJECT_ID}/cpp-cmakefiles/${DISTRO}-${DISTRO_VERSION}"
-readonly BUILD_OUTPUT="cmake-out/${BUILD_NAME}"
-readonly BUILD_HOME="cmake-out/home/${BUILD_NAME}"
-
-echo "================================================================"
-cd "${PROJECT_ROOT}"
-echo "Building with $(nproc) cores $(date) on ${PWD}."
-
-echo "================================================================"
-echo "Capture Docker version to troubleshoot $(date)."
-docker version
-echo "================================================================"
-
-has_cache="false"
-
-if [[ -n "${KOKORO_JOB_NAME:-}" ]]; then
-  # Download the docker image from the previous build on kokoro for speed.
-  echo "================================================================"
-  echo "Downloading Docker image $(date)."
-  gcloud auth configure-docker
-  if docker pull "${IMAGE}:latest"; then
-    echo "Existing image successfully downloaded."
-    has_cache="true"
-  fi
-  echo "================================================================"
-fi
-
-docker_build_flags=(
-  "-t" "${IMAGE}:latest"
-)
-
-if [[ -f "ci/kokoro/Dockerfile.${DISTRO}-${DISTRO_VERSION}" ]]; then
-  docker_build_flags+=("-f" "ci/kokoro/Dockerfile.${DISTRO}-${DISTRO_VERSION}")
-else
-  docker_build_flags+=(
-    "-f" "ci/kokoro/Dockerfile.${DISTRO}"
-    "--build-arg" "DISTRO_VERSION=${DISTRO_VERSION}"
-  )
-fi
-
-if "${has_cache}"; then
-  docker_build_flags+=("--cache-from=${IMAGE}:latest")
-fi
-
-update_cache="false"
-echo "================================================================"
-echo "Creating Docker image with all the development tools $(date)."
-if ci/retry-command.sh docker build "${docker_build_flags[@]}" ci; then
-  update_cache="true"
-  echo "Docker image created $(date)."
-  docker image ls | grep "${IMAGE}"
-else
-  echo "Failed creating Docker image $(date)."
-  if "${has_cache}"; then
-    echo "Continue the build with the cache."
-  else
-    exit 1   
-  fi
-fi
-echo "================================================================"
-
-if [[ -n "${KOKORO_JOB_NAME:-}" ]]; then
-  # Upload the docker image for speeding up the future builds.
-  echo "================================================================"
-  echo "Uploading Docker image $(date)."
-  docker push "${IMAGE}:latest" || true
-  echo "================================================================"
-fi
-
-
-echo "================================================================"
-echo "Running the full build $(date)."
-# The default user for a Docker container has uid 0 (root). To avoid creating
-# root-owned files in the build directory we tell docker to use the current
-# user ID, if known.
-docker_uid="${UID:-0}"
-docker_user="${USER:-root}"
-docker_home_prefix="${PWD}/cmake-out/home"
-if [[ "${docker_uid}" == "0" ]]; then
-  docker_home_prefix="${PWD}/cmake-out/root"
-fi
-
-# Make sure the user has a $HOME directory inside the Docker container.
-mkdir -p "${BUILD_HOME}"
-mkdir -p "${BUILD_OUTPUT}"
-
-# We use an array for the flags so they are easier to document.
-docker_flags=(
-    # Grant the PTRACE capability to the Docker container running the build,
-    # this is needed by tools like AddressSanitizer.
-    "--cap-add" "SYS_PTRACE"
-
-    # The name and version of the distribution, this is used to call
-    # define-docker-variables.sh and determine the Docker image built, and the
-    # output directory for any artifacts.
-    "--env" "DISTRO=${DISTRO}"
-    "--env" "DISTRO_VERSION=${DISTRO_VERSION}"
-
-    # The C++ and C compiler, both Bazel and CMake use this environment variable
-    # to select the compiler binary.
-    "--env" "CXX=${CXX}"
-    "--env" "CC=${CC}"
-
-    # If set to 'yes', the build script will run the style checks, including
-    # clang-format, cmake-format, and buildifier.
-    "--env" "CHECK_STYLE=${CHECK_STYLE:-}"
-
-    # If set to 'yes', the build script will configure clang-tidy. Currently
-    # only the CMake builds use this flag.
-    "--env" "CLANG_TIDY=${CLANG_TIDY:-}"
-
-    # If set to 'yes', run the integration tests. Currently only the Bazel
-    # builds use this flag.
-    "--env" "RUN_INTEGRATION_TESTS=${RUN_INTEGRATION_TESTS:-}"
-
-    # If set to 'yes', run compile with code coverage flags. Currently only the
-    # CMake builds use this flag.
-    "--env" "CODE_COVERAGE=${CODE_COVERAGE:-}"
-
-    # If set to 'yes', use Ninja as the CMake generator. Ninja is more strict
-    # that Make and can detect errors in your CMake files, it is also faster.
-    "--env" "USE_NINJA=${USE_NINJA:-}"
-
-    # If set, pass -DGOOGLE_CLOUD_CPP_CXX_STANDARD=<value> to CMake.
-    "--env" "GOOGLE_CLOUD_CPP_CXX_STANDARD=${GOOGLE_CLOUD_CPP_CXX_STANDARD:-}"
-
-    # When running the integration tests this directory contains the
-    # configuration files needed to run said tests. Make it available inside
-    # the Docker container.
-    "--volume" "${KOKORO_GFILE_DIR:-/dev/shm}:/c"
-
-    # Let the Docker image script know what kind of terminal we are using, that
-    # produces properly colorized error messages.
-    "--env" "TERM=${TERM:-dumb}"
-
-    # Run the docker script and this user id. Because the docker image gets to
-    # write in ${PWD} you typically want this to be your user id.
-    "--user" "${docker_uid}"
-
-    # Bazel needs this environment variable to work correctly.
-    "--env" "USER=${docker_user}"
-
-    # We give Bazel and CMake a fake $HOME inside the docker image. Bazel caches
-    # build byproducts in this directory. CMake (when ccache is enabled) uses
-    # it to store $HOME/.ccache
-    "--env" "HOME=/h"
-    "--volume" "${PWD}/${BUILD_HOME}:/h"
-
-    # Mount the current directory (which is the top-level directory for the
-    # project) as `/v` inside the docker image, and move to that directory.
-    "--volume" "${PWD}:/v"
-    "--workdir" "/v"
-
-    # Mask any other builds that may exist at the same time. That is, these
-    # directories appear as empty inside the Docker container, this prevents the
-    # container from writing into other builds, or to get confused by the output
-    # of other builds. In the CI system this does not matter, as each build runs
-    # on a completely separate VM. This is useful when running multiple builds
-    # in your workstation.
-    "--volume" "/v/cmake-out/home"
-    "--volume" "/v/cmake-out"
-    "--volume" "${PWD}/${BUILD_OUTPUT}:/v/${BUILD_OUTPUT}"
-)
-
-# When running the builds from the command-line they get a tty, and the scripts
-# running inside the Docker container can produce nicer output. On Kokoro the
-# script does not get a tty, and Docker terminates the program if we pass the
-# `-it` flag.
-if [[ -t 0 ]]; then
-  docker_flags+=("-it")
-fi
-
-docker run "${docker_flags[@]}" "${IMAGE}:latest" \
-    "/v/${in_docker_script}" "${CMAKE_SOURCE_DIR}" \
-    "${BUILD_OUTPUT}"
diff --git a/third_party/cpp/googleapis/ci/kokoro/docker/clang-3.8-presubmit.cfg b/third_party/cpp/googleapis/ci/kokoro/docker/clang-3.8-presubmit.cfg
deleted file mode 100644
index e69de29bb2..0000000000
--- a/third_party/cpp/googleapis/ci/kokoro/docker/clang-3.8-presubmit.cfg
+++ /dev/null
diff --git a/third_party/cpp/googleapis/ci/kokoro/docker/clang-3.8.cfg b/third_party/cpp/googleapis/ci/kokoro/docker/clang-3.8.cfg
deleted file mode 100644
index e69de29bb2..0000000000
--- a/third_party/cpp/googleapis/ci/kokoro/docker/clang-3.8.cfg
+++ /dev/null
diff --git a/third_party/cpp/googleapis/ci/kokoro/docker/clang-tidy-presubmit.cfg b/third_party/cpp/googleapis/ci/kokoro/docker/clang-tidy-presubmit.cfg
deleted file mode 100644
index e69de29bb2..0000000000
--- a/third_party/cpp/googleapis/ci/kokoro/docker/clang-tidy-presubmit.cfg
+++ /dev/null
diff --git a/third_party/cpp/googleapis/ci/kokoro/docker/clang-tidy.cfg b/third_party/cpp/googleapis/ci/kokoro/docker/clang-tidy.cfg
deleted file mode 100644
index e69de29bb2..0000000000
--- a/third_party/cpp/googleapis/ci/kokoro/docker/clang-tidy.cfg
+++ /dev/null
diff --git a/third_party/cpp/googleapis/ci/kokoro/docker/common.cfg b/third_party/cpp/googleapis/ci/kokoro/docker/common.cfg
deleted file mode 100644
index 213d93419a..0000000000
--- a/third_party/cpp/googleapis/ci/kokoro/docker/common.cfg
+++ /dev/null
@@ -1,17 +0,0 @@
-# Format: //devtools/kokoro/config/proto/build.proto
-# Copyright 2019 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-build_file: "cpp-cmakefiles/ci/kokoro/docker/build.sh"
-timeout_mins: 120
diff --git a/third_party/cpp/googleapis/ci/kokoro/docker/gcc-4.8-presubmit.cfg b/third_party/cpp/googleapis/ci/kokoro/docker/gcc-4.8-presubmit.cfg
deleted file mode 100644
index e69de29bb2..0000000000
--- a/third_party/cpp/googleapis/ci/kokoro/docker/gcc-4.8-presubmit.cfg
+++ /dev/null
diff --git a/third_party/cpp/googleapis/ci/kokoro/docker/gcc-4.8.cfg b/third_party/cpp/googleapis/ci/kokoro/docker/gcc-4.8.cfg
deleted file mode 100644
index e69de29bb2..0000000000
--- a/third_party/cpp/googleapis/ci/kokoro/docker/gcc-4.8.cfg
+++ /dev/null
diff --git a/third_party/cpp/googleapis/ci/kokoro/docker/ninja-presubmit.cfg b/third_party/cpp/googleapis/ci/kokoro/docker/ninja-presubmit.cfg
deleted file mode 100644
index e69de29bb2..0000000000
--- a/third_party/cpp/googleapis/ci/kokoro/docker/ninja-presubmit.cfg
+++ /dev/null
diff --git a/third_party/cpp/googleapis/ci/kokoro/docker/ninja.cfg b/third_party/cpp/googleapis/ci/kokoro/docker/ninja.cfg
deleted file mode 100644
index e69de29bb2..0000000000
--- a/third_party/cpp/googleapis/ci/kokoro/docker/ninja.cfg
+++ /dev/null
diff --git a/third_party/cpp/googleapis/ci/kokoro/docker/ubuntu-16.04-presubmit.cfg b/third_party/cpp/googleapis/ci/kokoro/docker/ubuntu-16.04-presubmit.cfg
deleted file mode 100644
index e69de29bb2..0000000000
--- a/third_party/cpp/googleapis/ci/kokoro/docker/ubuntu-16.04-presubmit.cfg
+++ /dev/null
diff --git a/third_party/cpp/googleapis/ci/kokoro/docker/ubuntu-16.04.cfg b/third_party/cpp/googleapis/ci/kokoro/docker/ubuntu-16.04.cfg
deleted file mode 100644
index e69de29bb2..0000000000
--- a/third_party/cpp/googleapis/ci/kokoro/docker/ubuntu-16.04.cfg
+++ /dev/null
diff --git a/third_party/cpp/googleapis/ci/kokoro/docker/ubuntu-18.04-presubmit.cfg b/third_party/cpp/googleapis/ci/kokoro/docker/ubuntu-18.04-presubmit.cfg
deleted file mode 100644
index e69de29bb2..0000000000
--- a/third_party/cpp/googleapis/ci/kokoro/docker/ubuntu-18.04-presubmit.cfg
+++ /dev/null
diff --git a/third_party/cpp/googleapis/ci/kokoro/docker/ubuntu-18.04.cfg b/third_party/cpp/googleapis/ci/kokoro/docker/ubuntu-18.04.cfg
deleted file mode 100644
index e69de29bb2..0000000000
--- a/third_party/cpp/googleapis/ci/kokoro/docker/ubuntu-18.04.cfg
+++ /dev/null
diff --git a/third_party/cpp/googleapis/ci/kokoro/install/Dockerfile.centos-7 b/third_party/cpp/googleapis/ci/kokoro/install/Dockerfile.centos-7
deleted file mode 100644
index 21b8908134..0000000000
--- a/third_party/cpp/googleapis/ci/kokoro/install/Dockerfile.centos-7
+++ /dev/null
@@ -1,105 +0,0 @@
-# Copyright 2019 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-FROM centos:7 AS devtools
-
-# Please keep the formatting in these commands, it is optimized to cut & paste
-# into the INSTALL.md file.
-
-## [START INSTALL.md]
-
-# First install the development tools and OpenSSL. The development tools
-# distributed with CentOS (notably CMake) are too old to build
-# `cpp-cmakefiles`. In these instructions, we use `cmake3` obtained from
-# [Software Collections](https://www.softwarecollections.org/).
-
-# ```bash
-RUN rpm -Uvh https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
-RUN yum install -y centos-release-scl
-RUN yum-config-manager --enable rhel-server-rhscl-7-rpms
-RUN yum makecache && \
-    yum install -y automake cmake3 curl-devel gcc gcc-c++ git libtool \
-        make openssl-devel pkgconfig tar wget which zlib-devel
-RUN ln -sf /usr/bin/cmake3 /usr/bin/cmake && ln -sf /usr/bin/ctest3 /usr/bin/ctest
-# ```
-
-# #### Protobuf
-
-# Likewise, manually install protobuf:
-
-# ```bash
-WORKDIR /var/tmp/build
-RUN wget -q https://github.com/google/protobuf/archive/v3.9.0.tar.gz
-RUN tar -xf v3.9.0.tar.gz
-WORKDIR /var/tmp/build/protobuf-3.9.0/cmake
-RUN cmake \
-        -DCMAKE_BUILD_TYPE=Release \
-        -DBUILD_SHARED_LIBS=yes \
-        -Dprotobuf_BUILD_TESTS=OFF \
-        -H. -Bcmake-out
-RUN cmake --build cmake-out --target install -- -j $(nproc)
-RUN ldconfig
-# ```
-
-# #### c-ares
-
-# Recent versions of gRPC require c-ares >= 1.11, while CentOS-7
-# distributes c-ares-1.10. Manually install a newer version:
-
-# ```bash
-WORKDIR /var/tmp/build
-RUN wget -q https://github.com/c-ares/c-ares/archive/cares-1_15_0.tar.gz
-RUN tar -xf cares-1_15_0.tar.gz
-WORKDIR /var/tmp/build/c-ares-cares-1_15_0
-RUN ./buildconf && ./configure && make -j $(nproc)
-RUN make install
-RUN ldconfig
-# ```
-
-# #### gRPC
-
-# Can be manually installed using:
-
-# ```bash
-WORKDIR /var/tmp/build
-RUN wget -q https://github.com/grpc/grpc/archive/v1.22.0.tar.gz
-RUN tar -xf v1.22.0.tar.gz
-WORKDIR /var/tmp/build/grpc-1.22.0
-ENV PKG_CONFIG_PATH=/usr/local/lib/pkgconfig:/usr/local/lib64/pkgconfig
-ENV LD_LIBRARY_PATH=/usr/local/lib:/usr/local/lib64
-ENV PATH=/usr/local/bin:${PATH}
-RUN make -j $(nproc)
-RUN make install
-RUN ldconfig
-# ```
-
-FROM devtools AS install
-
-# #### googleapis
-
-# Finally we can install `googleapis`.
-
-# ```bash
-WORKDIR /home/build/cpp-cmakefiles
-COPY . /home/build/cpp-cmakefiles
-RUN cmake -H. -Bcmake-out
-RUN cmake --build cmake-out -- -j $(nproc)
-WORKDIR /home/build/cpp-cmakefiles/cmake-out
-RUN cmake --build . --target install
-# ```
-
-## [END INSTALL.md]
-
-# Verify that the installed files are actually usable
-RUN /home/build/cpp-cmakefiles/ci/test-install/compile-test-projects.sh
diff --git a/third_party/cpp/googleapis/ci/kokoro/install/Dockerfile.fedora-30 b/third_party/cpp/googleapis/ci/kokoro/install/Dockerfile.fedora-30
deleted file mode 100644
index d6e57b91e2..0000000000
--- a/third_party/cpp/googleapis/ci/kokoro/install/Dockerfile.fedora-30
+++ /dev/null
@@ -1,58 +0,0 @@
-# Copyright 2019 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-FROM fedora:30 AS devtools
-
-# Please keep the formatting below, it is used by `extract-install.md`
-# to generate the contents of the top-level INSTALL.md.
-
-## [START INSTALL.md]
-
-# Install the minimal development tools:
-
-# ```bash
-RUN dnf makecache && \
-    dnf install -y cmake gcc-c++ git make openssl-devel pkgconfig \
-        zlib-devel
-# ```
-
-# Fedora includes packages for gRPC, libcurl, and OpenSSL that are recent enough
-# for `cpp-cmakefiles`. Install these packages and additional development
-# tools to compile the dependencies:
-
-# ```bash
-RUN dnf makecache && \
-    dnf install -y grpc-devel grpc-plugins \
-        libcurl-devel protobuf-compiler tar wget zlib-devel
-# ```
-
-FROM devtools AS install
-
-# #### googleapis
-
-# We can now compile and install `googleapis`.
-
-# ```bash
-WORKDIR /home/build/cpp-cmakefiles
-COPY . /home/build/cpp-cmakefiles
-RUN cmake -H. -Bcmake-out
-RUN cmake --build cmake-out -- -j $(nproc)
-WORKDIR /home/build/cpp-cmakefiles/cmake-out
-RUN cmake --build . --target install
-# ```
-
-## [END INSTALL.md]
-
-# Verify that the installed files are actually usable
-RUN /home/build/cpp-cmakefiles/ci/test-install/compile-test-projects.sh
diff --git a/third_party/cpp/googleapis/ci/kokoro/install/Dockerfile.fedora-30-shared b/third_party/cpp/googleapis/ci/kokoro/install/Dockerfile.fedora-30-shared
deleted file mode 100644
index 572018f994..0000000000
--- a/third_party/cpp/googleapis/ci/kokoro/install/Dockerfile.fedora-30-shared
+++ /dev/null
@@ -1,62 +0,0 @@
-# Copyright 2019 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-FROM fedora:30 AS devtools
-
-# Please keep the formatting below, it is used by `extract-install.md`
-# to generate the contents of the top-level INSTALL.md.
-
-## [START INSTALL.md]
-
-# Install the minimal development tools:
-
-# ```bash
-RUN dnf makecache && \
-    dnf install -y cmake gcc-c++ git make openssl-devel pkgconfig \
-        zlib-devel
-# ```
-
-# Fedora includes packages for gRPC, libcurl, and OpenSSL that are recent enough
-# for `cpp-cmakefiles`. Install these packages and additional development
-# tools to compile the dependencies:
-
-# ```bash
-RUN dnf makecache && \
-    dnf install -y grpc-devel grpc-plugins \
-        libcurl-devel protobuf-compiler tar wget zlib-devel
-# ```
-
-FROM devtools AS install
-
-# #### googleapis
-
-# We can now compile and install `googleapis` as shared library.
-
-# ```bash
-WORKDIR /home/build/cpp-cmakefiles
-COPY . /home/build/cpp-cmakefiles
-RUN cmake -H. -Bcmake-out -DBUILD_SHARED_LIBS=yes
-RUN cmake --build cmake-out -- -j $(nproc)
-WORKDIR /home/build/cpp-cmakefiles/cmake-out
-RUN cmake --build . --target install
-# The share libraries will install in `/usr/local/lib64` we need that directory
-# in the ld.so cache:
-RUN echo "/usr/local/lib64" | tee /etc/ld.so.conf.d/local.conf
-RUN ldconfig
-# ```
-
-## [END INSTALL.md]
-
-# Verify that the installed files are actually usable
-RUN /home/build/cpp-cmakefiles/ci/test-install/compile-test-projects.sh
diff --git a/third_party/cpp/googleapis/ci/kokoro/install/Dockerfile.opensuse-leap b/third_party/cpp/googleapis/ci/kokoro/install/Dockerfile.opensuse-leap
deleted file mode 100644
index ea2dda5ec4..0000000000
--- a/third_party/cpp/googleapis/ci/kokoro/install/Dockerfile.opensuse-leap
+++ /dev/null
@@ -1,114 +0,0 @@
-# Copyright 2019 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-FROM opensuse/leap:latest AS devtools
-
-## [START INSTALL.md]
-
-# Install the minimal development tools:
-
-# ```bash
-RUN zypper refresh && \
-    zypper install --allow-downgrade -y cmake gcc gcc-c++ git gzip \
-        libcurl-devel libopenssl-devel make tar wget
-# ```
-
-# #### Protobuf
-
-# OpenSUSE Leap includes a package for protobuf-2.6, but this is too old to
-# support the Google Cloud Platform proto files, or to support gRPC for that
-# matter. Manually install protobuf:
-
-# ```bash
-WORKDIR /var/tmp/build
-RUN wget -q https://github.com/google/protobuf/archive/v3.9.0.tar.gz
-RUN tar -xf v3.9.0.tar.gz
-WORKDIR /var/tmp/build/protobuf-3.9.0/cmake
-RUN cmake \
-        -DCMAKE_BUILD_TYPE=Release \
-        -DBUILD_SHARED_LIBS=yes \
-        -Dprotobuf_BUILD_TESTS=OFF \
-        -H. -Bcmake-out
-RUN cmake --build cmake-out --target install -- -j $(nproc)
-RUN ldconfig
-# ```
-
-# #### c-ares
-
-# Recent versions of gRPC require c-ares >= 1.11, while OpenSUSE Leap
-# distributes c-ares-1.9. We need some additional development tools to compile
-# this library:
-
-# ```bash
-RUN zypper refresh && \
-    zypper install -y automake libtool
-# ```
-
-# Manually install a newer version:
-
-# ```bash
-WORKDIR /var/tmp/build
-RUN wget -q https://github.com/c-ares/c-ares/archive/cares-1_15_0.tar.gz
-RUN tar -xf cares-1_15_0.tar.gz
-WORKDIR /var/tmp/build/c-ares-cares-1_15_0
-RUN ./buildconf && ./configure && make -j $(nproc)
-RUN make install
-RUN ldconfig
-# ```
-
-# #### gRPC
-
-# The gRPC Makefile uses `which` to determine whether the compiler is available.
-# Install this command for the extremely rare case where it may be missing from
-# your workstation or build server:
-
-# ```bash
-RUN zypper refresh && \
-    zypper install -y which
-# ```
-
-# Then gRPC can be manually installed using:
-
-# ```bash
-WORKDIR /var/tmp/build
-RUN wget -q https://github.com/grpc/grpc/archive/v1.22.0.tar.gz
-RUN tar -xf v1.22.0.tar.gz
-WORKDIR /var/tmp/build/grpc-1.22.0
-ENV PKG_CONFIG_PATH=/usr/local/lib/pkgconfig:/usr/local/lib64/pkgconfig
-ENV LD_LIBRARY_PATH=/usr/local/lib:/usr/local/lib64
-ENV PATH=/usr/local/bin:${PATH}
-RUN make -j $(nproc)
-RUN make install
-RUN ldconfig
-# ```
-
-FROM devtools AS install
-
-# #### googleapis
-
-# We can now compile and install `googleapis`.
-
-# ```bash
-WORKDIR /home/build/cpp-cmakefiles
-COPY . /home/build/cpp-cmakefiles
-RUN cmake -H. -Bcmake-out
-RUN cmake --build cmake-out -- -j $(nproc)
-WORKDIR /home/build/cpp-cmakefiles/cmake-out
-RUN cmake --build . --target install
-# ```
-
-## [END INSTALL.md]
-
-# Verify that the installed files are actually usable
-RUN /home/build/cpp-cmakefiles/ci/test-install/compile-test-projects.sh
diff --git a/third_party/cpp/googleapis/ci/kokoro/install/Dockerfile.opensuse-tumbleweed b/third_party/cpp/googleapis/ci/kokoro/install/Dockerfile.opensuse-tumbleweed
deleted file mode 100644
index 9a87337870..0000000000
--- a/third_party/cpp/googleapis/ci/kokoro/install/Dockerfile.opensuse-tumbleweed
+++ /dev/null
@@ -1,54 +0,0 @@
-# Copyright 2018 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-FROM opensuse/tumbleweed:latest AS devtools
-
-## [START INSTALL.md]
-
-# Install the minimal development tools:
-
-# ```bash
-RUN zypper refresh && \
-    zypper install --allow-downgrade -y cmake gcc gcc-c++ git gzip \
-        libcurl-devel libopenssl-devel make tar wget zlib-devel
-# ```
-
-# OpenSUSE:tumbleweed provides packages for gRPC, libcurl, and protobuf, and the
-# versions of these packages are recent enough to support the Google Cloud
-# Platform proto files.
-
-# ```bash
-RUN zypper refresh && \
-    zypper install -y grpc-devel gzip libcurl-devel tar wget
-# ```
-
-FROM devtools AS install
-
-# #### googleapis
-
-# We can now compile and install `googleapis`.
-
-# ```bash
-WORKDIR /home/build/cpp-cmakefiles
-COPY . /home/build/cpp-cmakefiles
-RUN cmake -H. -Bcmake-out
-RUN cmake --build cmake-out -- -j $(nproc)
-WORKDIR /home/build/cpp-cmakefiles/cmake-out
-RUN cmake --build . --target install
-# ```
-
-## [END INSTALL.md]
-
-# Verify that the installed files are actually usable
-RUN /home/build/cpp-cmakefiles/ci/test-install/compile-test-projects.sh
diff --git a/third_party/cpp/googleapis/ci/kokoro/install/Dockerfile.ubuntu-16.04 b/third_party/cpp/googleapis/ci/kokoro/install/Dockerfile.ubuntu-16.04
deleted file mode 100644
index 030ed4a2aa..0000000000
--- a/third_party/cpp/googleapis/ci/kokoro/install/Dockerfile.ubuntu-16.04
+++ /dev/null
@@ -1,100 +0,0 @@
-# Copyright 2018 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-FROM ubuntu:16.04 AS devtools
-
-# Please keep the formatting in these commands, it is optimized to cut & paste
-# into the README.md file.
-
-## [START INSTALL.md]
-
-# Install the minimal development tools:
-
-# ```bash
-RUN apt update && \
-    apt install -y automake build-essential cmake git gcc g++ cmake \
-        libcurl4-openssl-dev libssl-dev libtool make pkg-config tar wget \
-        zlib1g-dev
-# ```
-
-# #### c-ares
-
-# Recent versions of gRPC require c-ares >= 1.11, while Ubuntu-16.04
-# distributes c-ares-1.10. We can manually install a newer version
-# of c-ares:
-
-# ```bash
-WORKDIR /var/tmp/build
-RUN wget -q https://github.com/c-ares/c-ares/archive/cares-1_15_0.tar.gz
-RUN tar -xf cares-1_15_0.tar.gz
-WORKDIR /var/tmp/build/c-ares-cares-1_15_0
-RUN ./buildconf && ./configure && make -j $(nproc)
-RUN make install
-RUN ldconfig
-# ```
-
-# #### Protobuf
-
-# While protobuf-3.0 is distributed with Ubuntu, the Google Cloud Plaform proto
-# files require more recent versions (circa 3.4.x). To manually install a more
-# recent version use:
-
-# ```bash
-WORKDIR /var/tmp/build
-RUN wget -q https://github.com/google/protobuf/archive/v3.9.0.tar.gz
-RUN tar -xf v3.9.0.tar.gz
-WORKDIR /var/tmp/build/protobuf-3.9.0/cmake
-RUN cmake \
-        -DCMAKE_BUILD_TYPE=Release \
-        -DBUILD_SHARED_LIBS=yes \
-        -Dprotobuf_BUILD_TESTS=OFF \
-        -H. -Bcmake-out
-RUN cmake --build cmake-out --target install -- -j $(nproc)
-RUN ldconfig
-# ```
-
-# #### gRPC
-
-# Likewise, Ubuntu has packages for grpc-1.3.x, but this version is too old for
-# the Google Cloud Platform APIs:
-
-# ```bash
-WORKDIR /var/tmp/build
-RUN wget -q https://github.com/grpc/grpc/archive/v1.22.0.tar.gz
-RUN tar -xf v1.22.0.tar.gz
-WORKDIR /var/tmp/build/grpc-1.22.0
-RUN make -j $(nproc)
-RUN make install
-RUN ldconfig
-# ```
-
-FROM devtools AS install
-
-# #### googleapis
-
-# Finally we can install `googleapis`.
-
-# ```bash
-WORKDIR /home/build/cpp-cmakefiles
-COPY . /home/build/cpp-cmakefiles
-RUN cmake -H. -Bcmake-out
-RUN cmake --build cmake-out -- -j $(nproc)
-WORKDIR /home/build/cpp-cmakefiles/cmake-out
-RUN cmake --build . --target install
-# ```
-
-## [END INSTALL.md]
-
-# Verify that the installed files are actually usable
-RUN /home/build/cpp-cmakefiles/ci/test-install/compile-test-projects.sh
diff --git a/third_party/cpp/googleapis/ci/kokoro/install/Dockerfile.ubuntu-18.04 b/third_party/cpp/googleapis/ci/kokoro/install/Dockerfile.ubuntu-18.04
deleted file mode 100644
index 486d24aa47..0000000000
--- a/third_party/cpp/googleapis/ci/kokoro/install/Dockerfile.ubuntu-18.04
+++ /dev/null
@@ -1,84 +0,0 @@
-# Copyright 2018 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-FROM ubuntu:18.04 AS devtools
-
-# Please keep the formatting in these commands, it is optimized to cut & paste
-# into the README.md file.
-
-## [START INSTALL.md]
-
-# Install the minimal development tools:
-
-# ```bash
-RUN apt update && \
-    apt install -y build-essential cmake git gcc g++ cmake \
-        libc-ares-dev libc-ares2 libcurl4-openssl-dev libssl-dev make \
-        pkg-config tar wget zlib1g-dev
-# ```
-
-# #### Protobuf
-
-# While protobuf-3.0 is distributed with Ubuntu, the Google Cloud Plaform proto
-# files require more recent versions (circa 3.4.x). To manually install a more
-# recent version use:
-
-# ```bash
-WORKDIR /var/tmp/build
-RUN wget -q https://github.com/google/protobuf/archive/v3.9.0.tar.gz
-RUN tar -xf v3.9.0.tar.gz
-WORKDIR /var/tmp/build/protobuf-3.9.0/cmake
-RUN cmake \
-        -DCMAKE_BUILD_TYPE=Release \
-        -DBUILD_SHARED_LIBS=yes \
-        -Dprotobuf_BUILD_TESTS=OFF \
-        -H. -Bcmake-out
-RUN cmake --build cmake-out --target install -- -j $(nproc)
-RUN ldconfig
-# ```
-
-# #### gRPC
-
-# Likewise, Ubuntu has packages for grpc-1.3.x, but this version is too old for
-# the Google Cloud Platform APIs:
-
-# ```bash
-WORKDIR /var/tmp/build
-RUN wget -q https://github.com/grpc/grpc/archive/v1.22.0.tar.gz
-RUN tar -xf v1.22.0.tar.gz
-WORKDIR /var/tmp/build/grpc-1.22.0
-RUN make -j $(nproc)
-RUN make install
-RUN ldconfig
-# ```
-
-FROM devtools AS install
-
-# #### googleapis
-
-# Finally we can install `googleapis`.
-
-# ```bash
-WORKDIR /home/build/cpp-cmakefiles
-COPY . /home/build/cpp-cmakefiles
-RUN cmake -H. -Bcmake-out
-RUN cmake --build cmake-out -- -j $(nproc)
-WORKDIR /home/build/cpp-cmakefiles/cmake-out
-RUN cmake --build . --target install
-# ```
-
-## [END INSTALL.md]
-
-# Verify that the installed files are actually usable
-RUN /home/build/cpp-cmakefiles/ci/test-install/compile-test-projects.sh
diff --git a/third_party/cpp/googleapis/ci/kokoro/install/build.sh b/third_party/cpp/googleapis/ci/kokoro/install/build.sh
deleted file mode 100755
index 42e85f39b6..0000000000
--- a/third_party/cpp/googleapis/ci/kokoro/install/build.sh
+++ /dev/null
@@ -1,106 +0,0 @@
-#!/usr/bin/env bash
-#
-# Copyright 2019 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-set -eu
-
-if [[ $# -eq 1 ]]; then
-  export TEST_TARGET="${1}"
-elif [[ -n "${KOKORO_JOB_NAME:-}" ]]; then
-  # Kokoro injects the KOKORO_JOB_NAME environment variable, the value of this
-  # variable is cloud-cpp/spanner/<config-file-name-without-cfg> (or more
-  # generally <path/to/config-file-without-cfg>). By convention we name these
-  # files `$foo.cfg` for continuous builds and `$foo-presubmit.cfg` for
-  # presubmit builds. Here we extract the value of "foo" and use it as the build
-  # name.
-  TEST_TARGET="$(basename "${KOKORO_JOB_NAME}" "-presubmit")"
-  export TEST_TARGET
-else
-  echo "Aborting build as the distribution name is not defined."
-  echo "If you are invoking this script via the command line use:"
-  echo "    $0 <distro-name>"
-  echo
-  echo "If this script is invoked by Kokoro, the CI system is expected to set"
-  echo "the KOKORO_JOB_NAME environment variable."
-  exit 1
-fi
-
-echo "================================================================"
-echo "Change working directory to project root $(date)."
-cd "$(dirname "$0")/../../.."
-
-if [[ -z "${PROJECT_ID+x}" ]]; then
-  readonly PROJECT_ID="cloud-devrel-kokoro-resources"
-fi
-
-readonly DEV_IMAGE="gcr.io/${PROJECT_ID}/cpp-cmakefiles/test-install-dev-${TEST_TARGET}"
-readonly IMAGE="gcr.io/${PROJECT_ID}/cpp-cmakefiles/test-install-${TEST_TARGET}"
-
-has_cache="false"
-
-# We download the cached dev image for pull requests on kokoro. For continuous
-# jobs, we don't download the cached image. This means we build from scratch and
-# upload the image for future builds for pull requests.
-if [[ -n "${KOKORO_JOB_NAME:-}" ]] \
-  && [[ -n "${KOKORO_GITHUB_PULL_REQUEST_NUMBER:-}" ]]; then
-  echo "================================================================"
-  echo "Download existing image (if available) for ${TEST_TARGET} $(date)."
-  if docker pull "${DEV_IMAGE}:latest"; then
-    echo "Existing image successfully downloaded."
-    has_cache="true"
-  fi
-  echo "================================================================"
-fi
-
-echo "================================================================"
-echo "Build base image with minimal development tools for ${TEST_TARGET} $(date)."
-update_cache="false"
-
-devtools_flags=(
-  # Only build up to the stage that installs the minimal development tools, but
-  # does not compile any of our code.
-  "--target" "devtools"
-  # Create the image with the same tag as the cache we are using, so we can
-  # upload it.
-  "-t" "${DEV_IMAGE}:latest"
-  "-f" "ci/kokoro/install/Dockerfile.${TEST_TARGET}"
-)
-
-if "${has_cache}"; then
-  devtools_flags+=("--cache-from=${DEV_IMAGE}:latest")
-fi
-
-echo "Running docker build with " "${devtools_flags[@]}"
-if docker build "${devtools_flags[@]}" ci; then
-   update_cache="true"
-fi
-
-# We upload the cached image for continuous builds.
-if "${update_cache}" && [[ -z "${KOKORO_GITHUB_PULL_REQUEST_NUMBER:-}" ]] \
-  && [[ -n "${KOKORO_JOB_NAME:-}" ]]; then
-  echo "================================================================"
-  echo "Uploading updated base image for ${TEST_TARGET} $(date)."
-  # Do not stop the build on a failure to update the cache.
-  docker push "${DEV_IMAGE}:latest" || true
-fi
-
-echo "================================================================"
-echo "Run validation script for INSTALL instructions on ${TEST_TARGET}."
-docker build \
-  "--cache-from=${DEV_IMAGE}:latest" \
-  "--target=install" \
-  -t "${IMAGE}" \
-  -f "ci/kokoro/install/Dockerfile.${TEST_TARGET}" .
-echo "================================================================"
diff --git a/third_party/cpp/googleapis/ci/kokoro/install/centos-7-presubmit.cfg b/third_party/cpp/googleapis/ci/kokoro/install/centos-7-presubmit.cfg
deleted file mode 100644
index e69de29bb2..0000000000
--- a/third_party/cpp/googleapis/ci/kokoro/install/centos-7-presubmit.cfg
+++ /dev/null
diff --git a/third_party/cpp/googleapis/ci/kokoro/install/centos-7.cfg b/third_party/cpp/googleapis/ci/kokoro/install/centos-7.cfg
deleted file mode 100644
index e69de29bb2..0000000000
--- a/third_party/cpp/googleapis/ci/kokoro/install/centos-7.cfg
+++ /dev/null
diff --git a/third_party/cpp/googleapis/ci/kokoro/install/common.cfg b/third_party/cpp/googleapis/ci/kokoro/install/common.cfg
deleted file mode 100644
index 77a3a1f9fe..0000000000
--- a/third_party/cpp/googleapis/ci/kokoro/install/common.cfg
+++ /dev/null
@@ -1,17 +0,0 @@
-# Format: //devtools/kokoro/config/proto/build.proto
-# Copyright 2019 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-build_file: "cpp-cmakefiles/ci/kokoro/install/build.sh"
-timeout_mins: 120
diff --git a/third_party/cpp/googleapis/ci/kokoro/install/fedora-30-presubmit.cfg b/third_party/cpp/googleapis/ci/kokoro/install/fedora-30-presubmit.cfg
deleted file mode 100644
index e69de29bb2..0000000000
--- a/third_party/cpp/googleapis/ci/kokoro/install/fedora-30-presubmit.cfg
+++ /dev/null
diff --git a/third_party/cpp/googleapis/ci/kokoro/install/fedora-30-shared-presubmit.cfg b/third_party/cpp/googleapis/ci/kokoro/install/fedora-30-shared-presubmit.cfg
deleted file mode 100644
index e69de29bb2..0000000000
--- a/third_party/cpp/googleapis/ci/kokoro/install/fedora-30-shared-presubmit.cfg
+++ /dev/null
diff --git a/third_party/cpp/googleapis/ci/kokoro/install/fedora-30-shared.cfg b/third_party/cpp/googleapis/ci/kokoro/install/fedora-30-shared.cfg
deleted file mode 100644
index e69de29bb2..0000000000
--- a/third_party/cpp/googleapis/ci/kokoro/install/fedora-30-shared.cfg
+++ /dev/null
diff --git a/third_party/cpp/googleapis/ci/kokoro/install/fedora-30.cfg b/third_party/cpp/googleapis/ci/kokoro/install/fedora-30.cfg
deleted file mode 100644
index e69de29bb2..0000000000
--- a/third_party/cpp/googleapis/ci/kokoro/install/fedora-30.cfg
+++ /dev/null
diff --git a/third_party/cpp/googleapis/ci/kokoro/install/opensuse-leap-presubmit.cfg b/third_party/cpp/googleapis/ci/kokoro/install/opensuse-leap-presubmit.cfg
deleted file mode 100644
index e69de29bb2..0000000000
--- a/third_party/cpp/googleapis/ci/kokoro/install/opensuse-leap-presubmit.cfg
+++ /dev/null
diff --git a/third_party/cpp/googleapis/ci/kokoro/install/opensuse-leap.cfg b/third_party/cpp/googleapis/ci/kokoro/install/opensuse-leap.cfg
deleted file mode 100644
index e69de29bb2..0000000000
--- a/third_party/cpp/googleapis/ci/kokoro/install/opensuse-leap.cfg
+++ /dev/null
diff --git a/third_party/cpp/googleapis/ci/kokoro/install/opensuse-tumbleweed-presubmit.cfg b/third_party/cpp/googleapis/ci/kokoro/install/opensuse-tumbleweed-presubmit.cfg
deleted file mode 100644
index e69de29bb2..0000000000
--- a/third_party/cpp/googleapis/ci/kokoro/install/opensuse-tumbleweed-presubmit.cfg
+++ /dev/null
diff --git a/third_party/cpp/googleapis/ci/kokoro/install/opensuse-tumbleweed.cfg b/third_party/cpp/googleapis/ci/kokoro/install/opensuse-tumbleweed.cfg
deleted file mode 100644
index e69de29bb2..0000000000
--- a/third_party/cpp/googleapis/ci/kokoro/install/opensuse-tumbleweed.cfg
+++ /dev/null
diff --git a/third_party/cpp/googleapis/ci/kokoro/install/ubuntu-16.04-presubmit.cfg b/third_party/cpp/googleapis/ci/kokoro/install/ubuntu-16.04-presubmit.cfg
deleted file mode 100644
index e69de29bb2..0000000000
--- a/third_party/cpp/googleapis/ci/kokoro/install/ubuntu-16.04-presubmit.cfg
+++ /dev/null
diff --git a/third_party/cpp/googleapis/ci/kokoro/install/ubuntu-16.04.cfg b/third_party/cpp/googleapis/ci/kokoro/install/ubuntu-16.04.cfg
deleted file mode 100644
index e69de29bb2..0000000000
--- a/third_party/cpp/googleapis/ci/kokoro/install/ubuntu-16.04.cfg
+++ /dev/null
diff --git a/third_party/cpp/googleapis/ci/kokoro/install/ubuntu-18.04-presubmit.cfg b/third_party/cpp/googleapis/ci/kokoro/install/ubuntu-18.04-presubmit.cfg
deleted file mode 100644
index e69de29bb2..0000000000
--- a/third_party/cpp/googleapis/ci/kokoro/install/ubuntu-18.04-presubmit.cfg
+++ /dev/null
diff --git a/third_party/cpp/googleapis/ci/kokoro/install/ubuntu-18.04.cfg b/third_party/cpp/googleapis/ci/kokoro/install/ubuntu-18.04.cfg
deleted file mode 100644
index e69de29bb2..0000000000
--- a/third_party/cpp/googleapis/ci/kokoro/install/ubuntu-18.04.cfg
+++ /dev/null
diff --git a/third_party/cpp/googleapis/ci/retry-command.sh b/third_party/cpp/googleapis/ci/retry-command.sh
deleted file mode 100755
index 190bce4817..0000000000
--- a/third_party/cpp/googleapis/ci/retry-command.sh
+++ /dev/null
@@ -1,48 +0,0 @@
-#!/usr/bin/env bash
-# Copyright 2019 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-set -eu
-
-# Make three attempts to install the dependencies. It is rare, but from time to
-# time the downloading the packages, building the Docker images, or an installer
-# Bazel, or the Google Cloud SDK fails. To make the CI build more robust, try
-# again when that happens.
-
-if (( $# < 1 )); then
-  echo "Usage: $(basename "$0") program [arguments]"
-  exit 1
-fi
-readonly PROGRAM=${1}
-shift
-
-# Initially, wait at least 2 minutes (the times are in seconds), because it
-# makes no sense to try faster. This used to be 180 seconds, but that ends with
-# sleeps close to 10 minutes, and Travis aborts builds that do not output in
-# 10m.
-min_wait=120
-# Do not exit on failures for this loop.
-set +e
-for i in 1 2 3; do
-  if "${PROGRAM}" "$@"; then
-    exit 0
-  fi
-  # Sleep for a few minutes before trying again.
-  period=$(( (RANDOM % 60) + min_wait ))
-  echo "${PROGRAM} failed (attempt ${i}); trying again in ${period} seconds."
-  sleep ${period}s
-  min_wait=$(( min_wait * 2 ))
-done
-
-exit 1
diff --git a/third_party/cpp/googleapis/ci/test-install/bigquery/CMakeLists.txt b/third_party/cpp/googleapis/ci/test-install/bigquery/CMakeLists.txt
deleted file mode 100644
index 3086ef4617..0000000000
--- a/third_party/cpp/googleapis/ci/test-install/bigquery/CMakeLists.txt
+++ /dev/null
@@ -1,28 +0,0 @@
-# ~~~
-# Copyright 2019 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-# ~~~
-
-cmake_minimum_required(VERSION 3.5)
-
-project(utilize-googleapis CXX C)
-
-# Configure the compiler options, we will be using C++11 features.
-set(CMAKE_CXX_STANDARD 11)
-set(CMAKE_CXX_STANDARD_REQUIRED ON)
-
-find_package(googleapis REQUIRED)
-
-add_executable(utilize-googleapis main.cc)
-target_link_libraries(utilize-googleapis googleapis-c++::cloud_bigquery_protos)
diff --git a/third_party/cpp/googleapis/ci/test-install/bigquery/Makefile b/third_party/cpp/googleapis/ci/test-install/bigquery/Makefile
deleted file mode 100644
index bca2a7dc57..0000000000
--- a/third_party/cpp/googleapis/ci/test-install/bigquery/Makefile
+++ /dev/null
@@ -1,36 +0,0 @@
-# Copyright 2019 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-# A simple Makefile to test the `install` target.
-#
-# This is not intended to be a demonstration of how to write good Makefiles,
-# nor is it a general solution on how to build Makefiles for google-cloud-cpp.
-# It is simply a minimal file to test the installed pkg-config support files.
-
-# The CXX, CXXFLAGS and CXXLD variables are hard-coded. These values work for
-# our tests, but applications would typically make them configurable parameters.
-CXX=g++ -std=c++11
-CXXLD=$(CXX)
-
-all: main
-
-# Configuration variables to compile and link against the library.
-PROTOS     := googleapis_cpp_cloud_bigquery_protos
-CXXFLAGS   := $(shell pkg-config $(PROTOS) --cflags)
-CXXLDFLAGS := $(shell pkg-config $(PROTOS) --libs-only-L)
-LIBS       := $(shell pkg-config $(PROTOS) --libs-only-l)
-
-# A target using the Google Cloud Storage C++ client library.
-main: main.cc
-	$(CXXLD) $(CXXFLAGS) $(CXXFLAGS) $(CXXLDFLAGS) -o $@ $^ $(LIBS)
diff --git a/third_party/cpp/googleapis/ci/test-install/bigquery/main.cc b/third_party/cpp/googleapis/ci/test-install/bigquery/main.cc
deleted file mode 100644
index bd00013edd..0000000000
--- a/third_party/cpp/googleapis/ci/test-install/bigquery/main.cc
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright 2019 Google LLC
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#include <google/cloud/bigquery/storage/v1beta1/storage.grpc.pb.h>
-#include <grpcpp/grpcpp.h>
-
-int main() {
-  auto creds = grpc::InsecureChannelCredentials();
-  auto channel = grpc::CreateChannel("localhost:12345", creds);
-  auto stub = google::cloud::bigquery::storage::v1beta1::BigQueryStorage::NewStub(channel);
-}
diff --git a/third_party/cpp/googleapis/ci/test-install/bigtable/CMakeLists.txt b/third_party/cpp/googleapis/ci/test-install/bigtable/CMakeLists.txt
deleted file mode 100644
index 7aed05ff1d..0000000000
--- a/third_party/cpp/googleapis/ci/test-install/bigtable/CMakeLists.txt
+++ /dev/null
@@ -1,28 +0,0 @@
-# ~~~
-# Copyright 2019 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-# ~~~
-
-cmake_minimum_required(VERSION 3.5)
-
-project(utilize-googleapis CXX C)
-
-# Configure the compiler options, we will be using C++11 features.
-set(CMAKE_CXX_STANDARD 11)
-set(CMAKE_CXX_STANDARD_REQUIRED ON)
-
-find_package(googleapis REQUIRED)
-
-add_executable(utilize-googleapis main.cc)
-target_link_libraries(utilize-googleapis googleapis-c++::bigtable_protos)
diff --git a/third_party/cpp/googleapis/ci/test-install/bigtable/Makefile b/third_party/cpp/googleapis/ci/test-install/bigtable/Makefile
deleted file mode 100644
index 5643b234d7..0000000000
--- a/third_party/cpp/googleapis/ci/test-install/bigtable/Makefile
+++ /dev/null
@@ -1,36 +0,0 @@
-# Copyright 2019 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-# A simple Makefile to test the `install` target.
-#
-# This is not intended to be a demonstration of how to write good Makefiles,
-# nor is it a general solution on how to build Makefiles for google-cloud-cpp.
-# It is simply a minimal file to test the installed pkg-config support files.
-
-# The CXX, CXXFLAGS and CXXLD variables are hard-coded. These values work for
-# our tests, but applications would typically make them configurable parameters.
-CXX=g++ -std=c++11
-CXXLD=$(CXX)
-
-all: main
-
-# Configuration variables to compile and link against the library.
-PROTOS     := googleapis_cpp_bigtable_protos
-CXXFLAGS   := $(shell pkg-config $(PROTOS) --cflags)
-CXXLDFLAGS := $(shell pkg-config $(PROTOS) --libs-only-L)
-LIBS       := $(shell pkg-config $(PROTOS) --libs-only-l)
-
-# A target using the Google Cloud Storage C++ client library.
-main: main.cc
-	$(CXXLD) $(CXXFLAGS) $(CXXFLAGS) $(CXXLDFLAGS) -o $@ $^ $(LIBS)
diff --git a/third_party/cpp/googleapis/ci/test-install/bigtable/main.cc b/third_party/cpp/googleapis/ci/test-install/bigtable/main.cc
deleted file mode 100644
index 08fce3c7bc..0000000000
--- a/third_party/cpp/googleapis/ci/test-install/bigtable/main.cc
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright 2019 Google LLC
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#include <google/bigtable/v2/bigtable.grpc.pb.h>
-#include <grpcpp/grpcpp.h>
-
-int main() {
-  auto creds = grpc::InsecureChannelCredentials();
-  auto channel = grpc::CreateChannel("localhost:12345", creds);
-  auto stub = google::bigtable::v2::Bigtable::NewStub(channel);
-}
diff --git a/third_party/cpp/googleapis/ci/test-install/compile-test-projects.sh b/third_party/cpp/googleapis/ci/test-install/compile-test-projects.sh
deleted file mode 100755
index 25eea82ffc..0000000000
--- a/third_party/cpp/googleapis/ci/test-install/compile-test-projects.sh
+++ /dev/null
@@ -1,47 +0,0 @@
-#!/usr/bin/env bash
-# Copyright 2019 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-# Compile projects that utilize the cpp-cmakefiles header files and libraries
-# installed to the system. This script expects that the entire source tree is
-# copied to /home/build/cpp-cmakefiles. Don't try to run this locally.
-
-set -eu
-
-# Verify the installed CMake config and pkgconfig files are actually usable.
-
-for subdir in bigquery bigtable pubsub spanner; do
-  # Compile a test program using CMake.
-  echo "================================================================"
-  echo "Testing ${subdir} $(date) with CMake"
-  echo "================================================================"
-  src_dir="/home/build/cpp-cmakefiles/ci/test-install/${subdir}"
-  cmake_dir="/home/build/test-cmake-${subdir}"
-  make_dir="/home/build/test-make-${subdir}"
-  cmake -H"${src_dir}" -B"${cmake_dir}"
-  cmake --build "${cmake_dir}" -- -j "$(nproc)"
-  # Verify the generated program is runnable
-  "${cmake_dir}/utilize-googleapis"
-  echo "================================================================"
-  echo "Testing ${subdir} $(date) with Make"
-  echo "================================================================"
-  cp -R "${src_dir}" "${make_dir}"
-  cd "${make_dir}"
-  # With Make we may need to set PKG_CONFIG_PATH because the code is installed
-  # in /usr/local and that is not a default search location in some distros.
-  env PKG_CONFIG_PATH=/usr/local/lib64/pkgconfig:/usr/local/lib/pkgconfig \
-        make
-  # Verify the generated program is runnable
-  "${make_dir}/main"
-done
diff --git a/third_party/cpp/googleapis/ci/test-install/pubsub/CMakeLists.txt b/third_party/cpp/googleapis/ci/test-install/pubsub/CMakeLists.txt
deleted file mode 100644
index cc8d59e187..0000000000
--- a/third_party/cpp/googleapis/ci/test-install/pubsub/CMakeLists.txt
+++ /dev/null
@@ -1,28 +0,0 @@
-# ~~~
-# Copyright 2019 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-# ~~~
-
-cmake_minimum_required(VERSION 3.5)
-
-project(utilize-googleapis CXX C)
-
-# Configure the compiler options, we will be using C++11 features.
-set(CMAKE_CXX_STANDARD 11)
-set(CMAKE_CXX_STANDARD_REQUIRED ON)
-
-find_package(googleapis REQUIRED)
-
-add_executable(utilize-googleapis main.cc)
-target_link_libraries(utilize-googleapis googleapis-c++::pubsub_protos)
diff --git a/third_party/cpp/googleapis/ci/test-install/pubsub/Makefile b/third_party/cpp/googleapis/ci/test-install/pubsub/Makefile
deleted file mode 100644
index a5cbdcf789..0000000000
--- a/third_party/cpp/googleapis/ci/test-install/pubsub/Makefile
+++ /dev/null
@@ -1,36 +0,0 @@
-# Copyright 2019 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-# A simple Makefile to test the `install` target.
-#
-# This is not intended to be a demonstration of how to write good Makefiles,
-# nor is it a general solution on how to build Makefiles for google-cloud-cpp.
-# It is simply a minimal file to test the installed pkg-config support files.
-
-# The CXX, CXXFLAGS and CXXLD variables are hard-coded. These values work for
-# our tests, but applications would typically make them configurable parameters.
-CXX=g++ -std=c++11
-CXXLD=$(CXX)
-
-all: main
-
-# Configuration variables to compile and link against the library.
-PROTOS     := googleapis_cpp_pubsub_protos
-CXXFLAGS   := $(shell pkg-config $(PROTOS) --cflags)
-CXXLDFLAGS := $(shell pkg-config $(PROTOS) --libs-only-L)
-LIBS       := $(shell pkg-config $(PROTOS) --libs-only-l)
-
-# A target using the Google Cloud Storage C++ client library.
-main: main.cc
-	$(CXXLD) $(CXXFLAGS) $(CXXFLAGS) $(CXXLDFLAGS) -o $@ $^ $(LIBS)
diff --git a/third_party/cpp/googleapis/ci/test-install/pubsub/main.cc b/third_party/cpp/googleapis/ci/test-install/pubsub/main.cc
deleted file mode 100644
index 05549169da..0000000000
--- a/third_party/cpp/googleapis/ci/test-install/pubsub/main.cc
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright 2019 Google LLC
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#include <google/pubsub/v1/pubsub.grpc.pb.h>
-#include <grpcpp/grpcpp.h>
-
-int main() {
-  auto creds = grpc::InsecureChannelCredentials();
-  auto channel = grpc::CreateChannel("localhost:12345", creds);
-  auto stub = google::pubsub::v1::Publisher::NewStub(channel);
-}
diff --git a/third_party/cpp/googleapis/ci/test-install/spanner/CMakeLists.txt b/third_party/cpp/googleapis/ci/test-install/spanner/CMakeLists.txt
deleted file mode 100644
index 2a4577ace9..0000000000
--- a/third_party/cpp/googleapis/ci/test-install/spanner/CMakeLists.txt
+++ /dev/null
@@ -1,28 +0,0 @@
-# ~~~
-# Copyright 2019 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-# ~~~
-
-cmake_minimum_required(VERSION 3.5)
-
-project(utilize-googleapis CXX C)
-
-# Configure the compiler options, we will be using C++11 features.
-set(CMAKE_CXX_STANDARD 11)
-set(CMAKE_CXX_STANDARD_REQUIRED ON)
-
-find_package(googleapis REQUIRED)
-
-add_executable(utilize-googleapis main.cc)
-target_link_libraries(utilize-googleapis googleapis-c++::spanner_protos)
diff --git a/third_party/cpp/googleapis/ci/test-install/spanner/Makefile b/third_party/cpp/googleapis/ci/test-install/spanner/Makefile
deleted file mode 100644
index 74bf292ce6..0000000000
--- a/third_party/cpp/googleapis/ci/test-install/spanner/Makefile
+++ /dev/null
@@ -1,36 +0,0 @@
-# Copyright 2019 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-# A simple Makefile to test the `install` target.
-#
-# This is not intended to be a demonstration of how to write good Makefiles,
-# nor is it a general solution on how to build Makefiles for google-cloud-cpp.
-# It is simply a minimal file to test the installed pkg-config support files.
-
-# The CXX, CXXFLAGS and CXXLD variables are hard-coded. These values work for
-# our tests, but applications would typically make them configurable parameters.
-CXX=g++ -std=c++11
-CXXLD=$(CXX)
-
-all: main
-
-# Configuration variables to compile and link against the library.
-PROTOS     := googleapis_cpp_spanner_protos
-CXXFLAGS   := $(shell pkg-config $(PROTOS) --cflags)
-CXXLDFLAGS := $(shell pkg-config $(PROTOS) --libs-only-L)
-LIBS       := $(shell pkg-config $(PROTOS) --libs-only-l)
-
-# A target using the Google Cloud Storage C++ client library.
-main: main.cc
-	$(CXXLD) $(CXXFLAGS) $(CXXFLAGS) $(CXXLDFLAGS) -o $@ $^ $(LIBS)
diff --git a/third_party/cpp/googleapis/ci/test-install/spanner/main.cc b/third_party/cpp/googleapis/ci/test-install/spanner/main.cc
deleted file mode 100644
index f1866655ac..0000000000
--- a/third_party/cpp/googleapis/ci/test-install/spanner/main.cc
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright 2019 Google LLC
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#include <google/spanner/v1/spanner.grpc.pb.h>
-#include <grpcpp/grpcpp.h>
-
-int main() {
-  auto creds = grpc::InsecureChannelCredentials();
-  auto channel = grpc::CreateChannel("localhost:12345", creds);
-  auto stub = google::spanner::v1::Spanner::NewStub(channel);
-}
diff --git a/third_party/cpp/googleapis/cmake/CompileProtos.cmake b/third_party/cpp/googleapis/cmake/CompileProtos.cmake
deleted file mode 100644
index 788267c8d9..0000000000
--- a/third_party/cpp/googleapis/cmake/CompileProtos.cmake
+++ /dev/null
@@ -1,271 +0,0 @@
-# ~~~
-# Copyright 2019 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-# ~~~
-
-# Introduce a new TARGET property to associate proto files with a target.
-#
-# We use a function to define the property so it can be called multiple times
-# without introducing the property over and over.
-function (google_cloud_cpp_add_protos_property)
-    set_property(
-        TARGET
-        PROPERTY PROTO_SOURCES BRIEF_DOCS
-                 "The list of .proto files for a target." FULL_DOCS
-                 "List of .proto files specified for a target.")
-endfunction ()
-
-# Generate C++ for .proto files preserving the directory hierarchy
-#
-# Receives a list of `.proto` file names and (a) creates the runs to convert
-# these files to `.pb.h` and `.pb.cc` output files, (b) returns the list of
-# `.pb.cc` files and `.pb.h` files in @p HDRS, and (c) creates the list of files
-# preserving the directory hierarchy, such that if a `.proto` file says:
-#
-# import "foo/bar/baz.proto"
-#
-# the resulting C++ code says:
-#
-# #include <foo/bar/baz.pb.h>
-#
-# Use the `PROTO_PATH` option to provide one or more directories to search for
-# proto files in the import.
-#
-# @par Example
-#
-# google_cloud_cpp_generate_proto( MY_PB_FILES "foo/bar/baz.proto"
-# "foo/bar/qux.proto" PROTO_PATH_DIRECTORIES "another/dir/with/protos")
-#
-# Note that `protoc` the protocol buffer compiler requires your protos to be
-# somewhere in the search path defined by the `--proto_path` (aka -I) options.
-# For example, if you want to generate the `.pb.{h,cc}` files for
-# `foo/bar/baz.proto` then the directory containing `foo` must be in the search
-# path.
-function (google_cloud_cpp_generate_proto SRCS)
-    cmake_parse_arguments(_opt "" "" "PROTO_PATH_DIRECTORIES" ${ARGN})
-    if (NOT _opt_UNPARSED_ARGUMENTS)
-        message(SEND_ERROR "Error: google_cloud_cpp_generate_proto() called"
-                           " without any proto files")
-        return()
-    endif ()
-
-    # Build the list of `--proto_path` options. Use the absolute path for each
-    # option given, and do not include any path more than once.
-    set(protobuf_include_path)
-    foreach (dir ${_opt_PROTO_PATH_DIRECTORIES})
-        get_filename_component(absolute_path ${dir} ABSOLUTE)
-        list(FIND protobuf_include_path "${absolute_path}"
-             already_in_search_path)
-        if (${already_in_search_path} EQUAL -1)
-            list(APPEND protobuf_include_path "--proto_path" "${absolute_path}")
-        endif ()
-    endforeach ()
-
-    set(${SRCS})
-    foreach (filename ${_opt_UNPARSED_ARGUMENTS})
-        get_filename_component(file_directory "${filename}" DIRECTORY)
-        # This gets the filename without the extension, analogous to $(basename
-        # "${filename}" .proto)
-        get_filename_component(file_stem "${filename}" NAME_WE)
-
-        # Strip all the prefixes in ${_opt_PROTO_PATH_DIRECTORIES} from the
-        # source proto directory
-        set(D "${file_directory}")
-        if (DEFINED _opt_PROTO_PATH_DIRECTORIES)
-            foreach (P ${_opt_PROTO_PATH_DIRECTORIES})
-                string(REGEX REPLACE "^${P}" "" T "${D}")
-                set(D ${T})
-            endforeach ()
-        endif ()
-        set(pb_cc "${CMAKE_CURRENT_BINARY_DIR}/${D}/${file_stem}.pb.cc")
-        set(pb_h "${CMAKE_CURRENT_BINARY_DIR}/${D}/${file_stem}.pb.h")
-        list(APPEND ${SRCS} "${pb_cc}" "${pb_h}")
-        add_custom_command(
-            OUTPUT "${pb_cc}" "${pb_h}"
-            COMMAND
-                $<TARGET_FILE:protobuf::protoc> ARGS --cpp_out
-                "${CMAKE_CURRENT_BINARY_DIR}" ${protobuf_include_path}
-                "${filename}"
-            DEPENDS "${filename}" protobuf::protoc
-            COMMENT "Running C++ protocol buffer compiler on ${filename}"
-            VERBATIM)
-    endforeach ()
-
-    set_source_files_properties(${${SRCS}} PROPERTIES GENERATED TRUE)
-    set(${SRCS}
-        ${${SRCS}}
-        PARENT_SCOPE)
-endfunction ()
-
-# Generate gRPC C++ files from .proto files preserving the directory hierarchy.
-#
-# Receives a list of `.proto` file names and (a) creates the runs to convert
-# these files to `.grpc.pb.h` and `.grpc.pb.cc` output files, (b) returns the
-# list of `.grpc.pb.cc` and `.pb.h` files in @p SRCS, and (c) creates the list
-# of files preserving the directory hierarchy, such that if a `.proto` file says
-#
-# import "foo/bar/baz.proto"
-#
-# the resulting C++ code says:
-#
-# #include <foo/bar/baz.pb.h>
-#
-# Use the `PROTO_PATH` option to provide one or more directories to search for
-# proto files in the import.
-#
-# @par Example
-#
-# google_cloud_cpp_generate_grpc( MY_GRPC_PB_FILES "foo/bar/baz.proto"
-# "foo/bar/qux.proto" PROTO_PATH_DIRECTORIES "another/dir/with/protos")
-#
-# Note that `protoc` the protocol buffer compiler requires your protos to be
-# somewhere in the search path defined by the `--proto_path` (aka -I) options.
-# For example, if you want to generate the `.pb.{h,cc}` files for
-# `foo/bar/baz.proto` then the directory containing `foo` must be in the search
-# path.
-function (google_cloud_cpp_generate_grpcpp SRCS)
-    cmake_parse_arguments(_opt "" "" "PROTO_PATH_DIRECTORIES" ${ARGN})
-    if (NOT _opt_UNPARSED_ARGUMENTS)
-        message(
-            SEND_ERROR "Error: google_cloud_cpp_generate_grpc() called without"
-                       " any proto files")
-        return()
-    endif ()
-
-    # Build the list of `--proto_path` options. Use the absolute path for each
-    # option given, and do not include any path more than once.
-    set(protobuf_include_path)
-    foreach (dir ${_opt_PROTO_PATH_DIRECTORIES})
-        get_filename_component(absolute_path ${dir} ABSOLUTE)
-        list(FIND protobuf_include_path "${absolute_path}"
-             already_in_search_path)
-        if (${already_in_search_path} EQUAL -1)
-            list(APPEND protobuf_include_path "--proto_path" "${absolute_path}")
-        endif ()
-    endforeach ()
-
-    set(${SRCS})
-    foreach (filename ${_opt_UNPARSED_ARGUMENTS})
-        get_filename_component(file_directory "${filename}" DIRECTORY)
-        # This gets the filename without the extension, analogous to $(basename
-        # "${filename}" .proto)
-        get_filename_component(file_stem "${filename}" NAME_WE)
-
-        # Strip all the prefixes in ${_opt_PROTO_PATH_DIRECTORIES} from the
-        # source proto directory
-        set(D "${file_directory}")
-        if (DEFINED _opt_PROTO_PATH_DIRECTORIES)
-            foreach (P ${_opt_PROTO_PATH_DIRECTORIES})
-                string(REGEX REPLACE "^${P}" "" T "${D}")
-                set(D ${T})
-            endforeach ()
-        endif ()
-        set(grpc_pb_cc
-            "${CMAKE_CURRENT_BINARY_DIR}/${D}/${file_stem}.grpc.pb.cc")
-        set(grpc_pb_h "${CMAKE_CURRENT_BINARY_DIR}/${D}/${file_stem}.grpc.pb.h")
-        list(APPEND ${SRCS} "${grpc_pb_cc}" "${grpc_pb_h}")
-        add_custom_command(
-            OUTPUT "${grpc_pb_cc}" "${grpc_pb_h}"
-            COMMAND
-                $<TARGET_FILE:protobuf::protoc> ARGS
-                --plugin=protoc-gen-grpc=$<TARGET_FILE:gRPC::grpc_cpp_plugin>
-                "--grpc_out=${CMAKE_CURRENT_BINARY_DIR}"
-                "--cpp_out=${CMAKE_CURRENT_BINARY_DIR}" ${protobuf_include_path}
-                "${filename}"
-            DEPENDS "${filename}" protobuf::protoc gRPC::grpc_cpp_plugin
-            COMMENT "Running gRPC C++ protocol buffer compiler on ${filename}"
-            VERBATIM)
-    endforeach ()
-
-    set_source_files_properties(${${SRCS}} PROPERTIES GENERATED TRUE)
-    set(${SRCS}
-        ${${SRCS}}
-        PARENT_SCOPE)
-endfunction ()
-
-include(GNUInstallDirs)
-
-# Install headers for a C++ proto library.
-function (google_cloud_cpp_install_proto_library_headers target)
-    get_target_property(target_sources ${target} SOURCES)
-    foreach (header ${target_sources})
-        # Skip anything that is not a header file.
-        if (NOT "${header}" MATCHES "\\.h$")
-            continue()
-        endif ()
-        string(REPLACE "${CMAKE_CURRENT_BINARY_DIR}/" "" relative "${header}")
-        get_filename_component(dir "${relative}" DIRECTORY)
-        install(FILES "${header}"
-                DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/${dir}")
-    endforeach ()
-endfunction ()
-
-# Install protos for a C++ proto library.
-function (google_cloud_cpp_install_proto_library_protos target strip_prefix)
-    get_target_property(target_protos ${target} PROTO_SOURCES)
-    foreach (proto ${target_protos})
-        # Skip anything that is not a header file.
-        if (NOT "${proto}" MATCHES "\\.proto$")
-            continue()
-        endif ()
-        string(REPLACE "${strip_prefix}/" "" relative "${proto}")
-        get_filename_component(dir "${relative}" DIRECTORY)
-        # This is modeled after the Protobuf library, it installs the basic
-        # protos (think google/protobuf/any.proto) in the include directory for
-        # C/C++ code. :shrug:
-        install(FILES "${proto}"
-                DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/${dir}")
-    endforeach ()
-endfunction ()
-
-function (google_cloud_cpp_proto_library libname)
-    cmake_parse_arguments(_opt "" "" "PROTO_PATH_DIRECTORIES" ${ARGN})
-    if (NOT _opt_UNPARSED_ARGUMENTS)
-        message(SEND_ERROR "Error: google_cloud_cpp_proto_library() called"
-                           " without any proto files")
-        return()
-    endif ()
-
-    google_cloud_cpp_generate_proto(
-        proto_sources ${_opt_UNPARSED_ARGUMENTS} PROTO_PATH_DIRECTORIES
-        ${_opt_PROTO_PATH_DIRECTORIES})
-
-    add_library(${libname} ${proto_sources})
-    set_property(TARGET ${libname} PROPERTY PROTO_SOURCES
-                                            ${_opt_UNPARSED_ARGUMENTS})
-    target_link_libraries(${libname} PUBLIC gRPC::grpc++ gRPC::grpc
-                                            protobuf::libprotobuf)
-    target_include_directories(
-        ${libname}
-        PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}>
-               $<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}>
-               $<INSTALL_INTERFACE:include>)
-endfunction ()
-
-function (google_cloud_cpp_grpcpp_library libname)
-    cmake_parse_arguments(_opt "" "" "PROTO_PATH_DIRECTORIES" ${ARGN})
-    if (NOT _opt_UNPARSED_ARGUMENTS)
-        message(SEND_ERROR "Error: google_cloud_cpp_proto_library() called"
-                           " without any proto files")
-        return()
-    endif ()
-
-    google_cloud_cpp_generate_grpcpp(
-        grpcpp_sources ${_opt_UNPARSED_ARGUMENTS} PROTO_PATH_DIRECTORIES
-        ${_opt_PROTO_PATH_DIRECTORIES})
-    google_cloud_cpp_proto_library(
-        ${libname} ${_opt_UNPARSED_ARGUMENTS} PROTO_PATH_DIRECTORIES
-        ${_opt_PROTO_PATH_DIRECTORIES})
-    target_sources(${libname} PRIVATE ${grpcpp_sources})
-endfunction ()
diff --git a/third_party/cpp/googleapis/cmake/FindProtobufTargets.cmake b/third_party/cpp/googleapis/cmake/FindProtobufTargets.cmake
deleted file mode 100644
index ab196118d7..0000000000
--- a/third_party/cpp/googleapis/cmake/FindProtobufTargets.cmake
+++ /dev/null
@@ -1,204 +0,0 @@
-# ~~~
-# Copyright 2019 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-# ~~~
-
-#[=======================================================================[.rst:
-FindProtobufTargets
--------------------
-
-A module to use `Protobuf` with less complications.
-
-Using ``find_package(Protobuf)`` should be simple, but it is not.
-
-CMake provides a ``FindProtobuf`` module. Unfortunately it does not generate
-`protobuf::*` targets until CMake-3.9, and `protobuf::protoc` does not
-appear until CMake-3.10.
-
-The CMake-config files generated by `protobuf` always create these targets,
-but on some Linux distributions (e.g. Fedora>=29, and openSUSE-Tumbleweed) there
-are system packages for protobuf, but these packages are installed without the
-CMake-config files. One must either use the ``FindProtobuf`` module, find the
-libraries via `pkg-config`, or find the libraries manually.
-
-When the CMake-config files are installed they produce the same targets as
-recent versions of ``FindProtobuf``. However, they do not produce the
-`Protobuf_LIBRARY`, `Protobuf_INCLUDE_DIR`, etc. that are generated by the
-module. Furthermore, the `protobuf::protoc` library is not usable when loaded
-from the CMake-config files: its ``IMPORTED_LOCATION`` variable is not defined.
-
-This module is designed to provide a single, uniform, ``find_package()``
-module that always produces the same outputs:
-
-- It always generates the ``protobuf::*`` targets.
-- It always defines ``ProtobufTargets_FOUND`` and ``ProtobufTargets_VERSION``.
-- It *prefers* using the CMake config files if they are available.
-- It fallsback on the ``FindProtobuf`` module if the config files are not found.
-- It populates any missing targets and their properties.
-
-The following :prop_tgt:`IMPORTED` targets are defined:
-
-``protobuf::libprotobuf``
-  The protobuf library.
-``protobuf::libprotobuf-lite``
-  The protobuf lite library.
-``protobuf::libprotoc``
-  The protoc library.
-``protobuf::protoc``
-  The protoc compiler.
-
-Example:
-
-.. code-block:: cmake
-
-  find_package(ProtobufTargets REQUIRED)
-  add_executable(bar bar.cc)
-  target_link_libraries(bar PRIVATE protobuf::libprotobuf)
-
-#]=======================================================================]
-
-if (protobuf_DEBUG)
-    message(STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] "
-                   "protobuf_USE_STATIC_LIBS = ${protobuf_USE_STATIC_LIBS}"
-                   " ProtobufTargets = ${ProtobufTargets_FOUND}")
-endif ()
-
-# Always load thread support, even on Windows.
-find_package(Threads REQUIRED)
-
-# First try to use the ``protobufConfig.cmake`` or ``protobuf-config.cmake``
-# file if it was installed. This is common on systems (or package managers)
-# where protobuf was compiled and installed with `CMake`. Note that on Linux
-# this *must* be all lowercase ``protobuf``, while on Windows it does not
-# matter.
-find_package(protobuf CONFIG)
-
-if (protobuf_DEBUG)
-    message(STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] "
-                   "protobuf_FOUND = ${protobuf_FOUND}"
-                   " protobuf_VERSION = ${protobuf_VERSION}")
-endif ()
-
-if (protobuf_FOUND)
-    set(ProtobufTargets_FOUND 1)
-    set(ProtobufTargets_VERSION ${protobuf_VERSION})
-    if (protobuf_DEBUG)
-        message(
-            STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] "
-                   "ProtobufTargets_FOUND = ${ProtobufTargets_FOUND}"
-                   " ProtobufTargets_VERSION = ${ProtobufTargets_VERSION}")
-    endif ()
-else ()
-    find_package(Protobuf QUIET)
-    if (Protobuf_FOUND)
-        set(ProtobufTargets_FOUND 1)
-        set(ProtobufTargets_VERSION ${Protobuf_VERSION})
-
-        if (NOT TARGET protobuf::libprotobuf)
-            add_library(protobuf::libprotobuf IMPORTED INTERFACE)
-            set_property(
-                TARGET protobuf::libprotobuf
-                PROPERTY INTERFACE_INCLUDE_DIRECTORIES ${Protobuf_INCLUDE_DIR})
-            set_property(
-                TARGET protobuf::libprotobuf APPEND
-                PROPERTY INTERFACE_LINK_LIBRARIES ${Protobuf_LIBRARY}
-                         Threads::Threads)
-        endif ()
-
-        if (NOT TARGET protobuf::libprotobuf-lite)
-            add_library(protobuf::libprotobuf-lite IMPORTED INTERFACE)
-            set_property(
-                TARGET protobuf::libprotobuf-lite
-                PROPERTY INTERFACE_INCLUDE_DIRECTORIES ${Protobuf_INCLUDE_DIR})
-            set_property(
-                TARGET protobuf::libprotobuf-lite APPEND
-                PROPERTY INTERFACE_LINK_LIBRARIES ${Protobuf_LITE_LIBRARY}
-                         Threads::Threads)
-        endif ()
-
-        if (NOT TARGET protobuf::libprotoc)
-            add_library(protobuf::libprotoc IMPORTED INTERFACE)
-            set_property(
-                TARGET protobuf::libprotoc
-                PROPERTY INTERFACE_INCLUDE_DIRECTORIES ${Protobuf_INCLUDE_DIR})
-            set_property(
-                TARGET protobuf::libprotoc APPEND
-                PROPERTY INTERFACE_LINK_LIBRARIES ${Protobuf_PROTOC_LIBRARY}
-                         Threads::Threads)
-        endif ()
-    endif ()
-endif ()
-
-if (protobuf_DEBUG)
-    message(STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] "
-                   "ProtobufTargets_FOUND = ${ProtobufTargets_FOUND}"
-                   " ProtobufTargets_VERSION = ${ProtobufTargets_VERSION}")
-endif ()
-
-# We also should try to find the protobuf C++ plugin for the protocol buffers
-# compiler.
-if (ProtobufTargets_FOUND AND NOT TARGET protobuf::protoc)
-    add_executable(protobuf::protoc IMPORTED)
-
-    # Discover the protoc compiler location.
-    find_program(
-        _protobuf_PROTOC_EXECUTABLE
-        NAMES protoc
-        DOC "The Google Protocol Buffers Compiler")
-    if (protobuf_DEBUG)
-        message(
-            STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] "
-                   "ProtobufTargets_FOUND = ${ProtobufTargets_FOUND}"
-                   " ProtobufTargets_VERSION = ${ProtobufTargets_VERSION}"
-                   " EXE = ${_protobuf_PROTOC_EXECUTABLE}")
-    endif ()
-    set_property(TARGET protobuf::protoc
-                 PROPERTY IMPORTED_LOCATION ${_protobuf_PROTOC_EXECUTABLE})
-    set_property(
-        TARGET protobuf::protoc PROPERTY IMPORTED_LOCATION_DEBUG
-                                         ${_protobuf_PROTOC_EXECUTABLE})
-    set_property(
-        TARGET protobuf::protoc PROPERTY IMPORTED_LOCATION_RELEASE
-                                         ${_protobuf_PROTOC_EXECUTABLE})
-    unset(_protobuf_PROTOC_EXECUTABLE)
-
-    if (protobuf_DEBUG)
-        get_target_property(_protobuf_PROTOC_EXECUTABLE protobuf::protoc
-                            IMPORTED_LOCATION)
-        message(
-            STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] "
-                   "LOCATION=${_protobuf_PROTOC_EXECUTABLE}")
-    endif ()
-endif ()
-
-if (protobuf_DEBUG)
-    message(STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] "
-                   "ProtobufTargets_FOUND = ${ProtobufTargets_FOUND}"
-                   " ProtobufTargets_VERSION = ${ProtobufTargets_VERSION}")
-    if (ProtobufTargets_FOUND)
-        foreach (_target protobuf::libprotobuf protobuf::libprotobuf-lite
-                         protobuf::libprotoc)
-            if (NOT TARGET ${_target})
-                message(
-                    STATUS
-                        "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] "
-                        "target=${_target} is NOT a target")
-            endif ()
-        endforeach ()
-        unset(_target)
-    endif ()
-endif ()
-
-find_package_handle_standard_args(ProtobufTargets REQUIRED_VARS
-                                  ProtobufTargets_FOUND ProtobufTargets_VERSION)
diff --git a/third_party/cpp/googleapis/cmake/FindgRPC.cmake b/third_party/cpp/googleapis/cmake/FindgRPC.cmake
deleted file mode 100644
index 358285b620..0000000000
--- a/third_party/cpp/googleapis/cmake/FindgRPC.cmake
+++ /dev/null
@@ -1,333 +0,0 @@
-# ~~~
-# Copyright 2019 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-# ~~~
-
-#[=======================================================================[.rst:
-FindgRPC
---------
-
-Locate and configure the gRPC library.
-
-The following variables can be set and are optional:
-
-``gRPC_DEBUG``
-  Show debug messages.
-``gRPC_USE_STATIC_LIBS``
-  Set to ON to force the use of the static libraries.
-  Default is OFF.
-
-Defines the following variables:
-
-``gRPC_FOUND``
-  Found the gRPC library
-``gRPC_VERSION``
-  Version of package found.
-
-The following :prop_tgt:`IMPORTED` targets are also defined:
-
-``gRPC::grpc++``
-  The gRPC C++ library.
-``gRPC::grpc``
-  The gRPC C core library.
-``gRPC::cpp_plugin``
-  The C++ plugin for the Protobuf protoc compiler.
-
-The following cache variables are also available to set or use:
-
-Example:
-
-.. code-block:: cmake
-
-  find_package(gRPC REQUIRED)
-  add_executable(bar bar.cc)
-  target_link_libraries(bar PRIVATE gRPC::grpc++)
-
-#]=======================================================================]
-
-if (gRPC_DEBUG)
-    message(STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] "
-                   "gRPC_USE_STATIC_LIBS = ${gRPC_USE_STATIC_LIBS}"
-                   " gRPC_FOUND = ${gRPC_FOUND}")
-endif ()
-
-# gRPC always requires Thread support.
-find_package(Threads REQUIRED)
-
-# Load the module to find protobuf with proper targets. Do not use
-# `find_package()` because we (have to) install this module in non-standard
-# locations.
-include(${CMAKE_CURRENT_LIST_DIR}/FindProtobufTargets.cmake)
-
-# The gRPC::grpc_cpp_plugin target is sometimes defined, but without a
-# IMPORTED_LOCATION
-function (_grpc_fix_grpc_cpp_plugin_target)
-    # The target may already exist, do not create it again if it does.
-    if (NOT TARGET gRPC::grpc_cpp_plugin)
-        add_executable(gRPC::grpc_cpp_plugin IMPORTED)
-    endif ()
-    get_target_property(_gRPC_CPP_PLUGIN_EXECUTABLE gRPC::grpc_cpp_plugin
-                        IMPORTED_LOCATION)
-    if (gRPC_DEBUG)
-        message(
-            STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] "
-                   "LOCATION=${_gRPC_CPP_PLUGIN_EXECUTABLE}")
-    endif ()
-    # Even if the target exists, gRPC CMake support files do not define the
-    # executable for the imported target (at least they do not in v1.19.1), so
-    # we need to define it ourselves.
-    if (NOT _gRPC_CPP_PLUGIN_EXECUTABLE)
-        find_program(_gRPC_CPP_PLUGIN_EXECUTABLE grpc_cpp_plugin
-                     DOC "The gRPC C++ plugin for protoc")
-        mark_as_advanced(_gRPC_CPP_PLUGIN_EXECUTABLE)
-        if (_gRPC_CPP_PLUGIN_EXECUTABLE)
-            set_property(
-                TARGET gRPC::grpc_cpp_plugin
-                PROPERTY IMPORTED_LOCATION ${_gRPC_CPP_PLUGIN_EXECUTABLE})
-        else ()
-            set(gRPC_FOUND "grpc_cpp_plugin-NOTFOUND")
-        endif ()
-    endif ()
-endfunction ()
-
-# The gRPC::* targets sometimes lack the right definitions to compile cleanly on
-# WIN32
-function (_grpc_fix_grpc_target_definitions)
-    # Including gRPC headers without this definition results in a build error.
-    if (WIN32)
-        set_property(TARGET gRPC::grpc APPEND
-                     PROPERTY INTERFACE_COMPILE_DEFINITIONS _WIN32_WINNT=0x600)
-        set_property(TARGET gRPC::grpc++ APPEND
-                     PROPERTY INTERFACE_COMPILE_DEFINITIONS _WIN32_WINNT=0x600)
-    endif ()
-endfunction ()
-
-# First try to use the `gRPCConfig.cmake` or `grpc-config.cmake` file if it was
-# installed. This is common on systems (or package managers) where gRPC was
-# compiled and installed with `CMake`.
-find_package(gRPC NO_MODULE QUIET)
-
-if (gRPC_DEBUG)
-    message(STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] "
-                   "NO_MODULE result gRPC_FOUND = ${gRPC_FOUND}")
-endif ()
-
-if (gRPC_FOUND)
-    _grpc_fix_grpc_cpp_plugin_target()
-    _grpc_fix_grpc_target_definitions()
-    return()
-endif ()
-
-include(SelectLibraryConfigurations)
-
-# Internal function: search for normal library as well as a debug one if the
-# debug one is specified also include debug/optimized keywords in *_LIBRARIES
-# variable
-function (_gRPC_find_library name filename)
-    if (${name}_LIBRARY)
-        # Use result recorded by a previous call.
-        return()
-    else ()
-        find_library(${name}_LIBRARY_RELEASE NAMES ${filename})
-        mark_as_advanced(${name}_LIBRARY_RELEASE)
-
-        find_library(${name}_LIBRARY_DEBUG NAMES ${filename}d ${filename})
-        mark_as_advanced(${name}_LIBRARY_DEBUG)
-
-        select_library_configurations(${name})
-
-        if (gRPC_DEBUG)
-            message(
-                STATUS
-                    "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] "
-                    "${name} ${filename} RELEASE=${${name}_LIBRARY}"
-                    " DEBUG=${${name}_LIBRARY_DEBUG} DEFAULT=${${name}_LIBRARY}"
-            )
-        endif ()
-
-        set(${name}_LIBRARY
-            "${${name}_LIBRARY}"
-            PARENT_SCOPE)
-    endif ()
-endfunction ()
-
-#
-# Main
-#
-
-# Support preference of static libs by adjusting CMAKE_FIND_LIBRARY_SUFFIXES
-if (_gRPC_USE_STATIC_LIBS)
-    set(_gRPC_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_FIND_LIBRARY_SUFFIXES})
-    if (WIN32)
-        set(CMAKE_FIND_LIBRARY_SUFFIXES .lib .a ${CMAKE_FIND_LIBRARY_SUFFIXES})
-    else ()
-        set(CMAKE_FIND_LIBRARY_SUFFIXES .a)
-    endif ()
-endif ()
-
-_grpc_find_library(_gRPC_grpc grpc)
-_grpc_find_library(_gRPC_grpc++ grpc++)
-
-if (NOT _gRPC_INCLUDE_DIR)
-    find_path(_gRPC_INCLUDE_DIR grpcpp/grpcpp.h)
-    mark_as_advanced(_gRPC_INCLUDE_DIR)
-endif ()
-
-if (gRPC_DEBUG)
-    message(STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] "
-                   " _gRPC_grpc_LIBRARY = ${_gRPC_grpc_LIBRARY}")
-    message(STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] "
-                   " _gRPC_grpc++_LIBRARY = ${_gRPC_grpc++_LIBRARY}")
-    message(STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] "
-                   " _gRPC_INCLUDE_DIR = ${_gRPC_INCLUDE_DIR}")
-endif ()
-
-if (_gRPC_grpc_LIBRARY)
-    if (NOT TARGET gRPC::grpc)
-        add_library(gRPC::grpc IMPORTED UNKNOWN)
-        set_target_properties(
-            gRPC::grpc PROPERTIES INTERFACE_INCLUDE_DIRECTORIES
-                                  "${_gRPC_INCLUDE_DIR}")
-        if (EXISTS "${_gRPC_grpc_LIBRARY}")
-            set_target_properties(gRPC::grpc PROPERTIES IMPORTED_LOCATION
-                                                        "${_gRPC_grpc_LIBRARY}")
-        endif ()
-        if (EXISTS "${_gRPC_grpc_LIBRARY_RELEASE}")
-            set_property(TARGET gRPC::grpc APPEND
-                         PROPERTY IMPORTED_CONFIGURATIONS RELEASE)
-            set_target_properties(
-                gRPC::grpc PROPERTIES IMPORTED_LOCATION_RELEASE
-                                      "${_gRPC_grpc_LIBRARY_RELEASE}")
-        endif ()
-        if (EXISTS "${_gRPC_grpc_LIBRARY_DEBUG}")
-            set_property(TARGET gRPC::grpc APPEND
-                         PROPERTY IMPORTED_CONFIGURATIONS DEBUG)
-            set_target_properties(
-                gRPC::grpc PROPERTIES IMPORTED_LOCATION_DEBUG
-                                      "${_gRPC_grpc_LIBRARY_DEBUG}")
-        endif ()
-        set_property(
-            TARGET gRPC::grpc APPEND
-            PROPERTY INTERFACE_LINK_LIBRARIES protobuf::libprotobuf
-                     Threads::Threads)
-    endif ()
-endif ()
-
-if (_gRPC_grpc++_LIBRARY)
-    if (NOT TARGET gRPC::grpc++)
-        add_library(gRPC::grpc++ IMPORTED UNKNOWN)
-        set_target_properties(
-            gRPC::grpc++ PROPERTIES INTERFACE_INCLUDE_DIRECTORIES
-                                    "${_gRPC++_INCLUDE_DIR}")
-        if (EXISTS "${_gRPC_grpc++_LIBRARY}")
-            set_target_properties(
-                gRPC::grpc++ PROPERTIES IMPORTED_LOCATION
-                                        "${_gRPC_grpc++_LIBRARY}")
-        endif ()
-        if (EXISTS "${_gRPC_grpc++_LIBRARY_RELEASE}")
-            set_property(TARGET gRPC::grpc++ APPEND
-                         PROPERTY IMPORTED_CONFIGURATIONS RELEASE)
-            set_target_properties(
-                gRPC::grpc++ PROPERTIES IMPORTED_LOCATION_RELEASE
-                                        "${_gRPC_grpc++_LIBRARY_RELEASE}")
-        endif ()
-        if (EXISTS "${_gRPC_grpc++_LIBRARY_DEBUG}")
-            set_property(TARGET gRPC::grpc++ APPEND
-                         PROPERTY IMPORTED_CONFIGURATIONS DEBUG)
-            set_target_properties(
-                gRPC::grpc++ PROPERTIES IMPORTED_LOCATION_DEBUG
-                                        "${_gRPC_grpc++_LIBRARY_DEBUG}")
-        endif ()
-        set_property(
-            TARGET gRPC::grpc++ APPEND
-            PROPERTY INTERFACE_LINK_LIBRARIES gRPC::grpc protobuf::libprotobuf
-                     Threads::Threads)
-        if (CMAKE_VERSION VERSION_GREATER 3.8)
-            # gRPC++ requires C++11, but only CMake-3.8 introduced a target
-            # compiler feature to meet that requirement.
-            set_property(TARGET gRPC::grpc++ APPEND
-                         PROPERTY INTERFACE_COMPILE_FEATURES cxx_std_11)
-        elseif ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
-            # CMake 3.5 is still alive and kicking in some older distros, use
-            # the compiler-specific versions in these cases.
-            set_property(TARGET gRPC::grpc++ APPEND
-                         PROPERTY INTERFACE_COMPILE_OPTIONS "-std=c++11")
-        elseif ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
-            set_property(TARGET gRPC::grpc++ APPEND
-                         PROPERTY INTERFACE_COMPILE_OPTIONS "-std=c++11")
-        else ()
-            message(
-                WARNING
-                    "gRPC::grpc++ requires C++11, but this module"
-                    " (${CMAKE_CURRENT_LIST_FILE})"
-                    " cannot enable it for the library target in your CMake and"
-                    " compiler versions. You need to enable C++11 in the"
-                    " CMakeLists.txt for your project. Consider filing a bug"
-                    " so we can fix this problem.")
-        endif ()
-    endif ()
-endif ()
-
-# Restore original find library prefixes
-if (_gRPC_USE_STATIC_LIBS)
-    set(CMAKE_FIND_LIBRARY_PREFIXES "${_gRPC_ORIG_FIND_LIBRARY_PREFIXES}")
-endif ()
-
-file(
-    WRITE "${CMAKE_BINARY_DIR}/get_gRPC_version.cc"
-    [====[
-#include <grpcpp/grpcpp.h>
-#include <iostream>
-int main() {
-  std::cout << grpc::Version(); // no newline to simplify CMake module
-  return 0;
-}
-        ]====])
-
-try_run(
-    _gRPC_GET_VERSION_STATUS
-    _gRPC_GET_VERSION_COMPILE_STATUS
-    "${CMAKE_BINARY_DIR}"
-    "${CMAKE_BINARY_DIR}/get_gRPC_version.cc"
-    LINK_LIBRARIES
-    gRPC::grpc++
-    gRPC::grpc
-    COMPILE_OUTPUT_VARIABLE _gRPC_GET_VERSION_COMPILE_OUTPUT
-    RUN_OUTPUT_VARIABLE gRPC_VERSION)
-
-file(REMOVE "${CMAKE_BINARY_DIR}/get_gRPC_version.cc")
-
-_grpc_fix_grpc_cpp_plugin_target()
-
-if (gRPC_DEBUG)
-    foreach (
-        _var
-        _gRPC_CPP_PLUGIN_EXECUTABLE
-        _gRPC_VERSION_RAW
-        _gRPC_GET_VERSION_STATUS
-        _gRPC_GET_VERSION_COMPILE_STATUS
-        _gRPC_GET_VERSION_COMPILE_OUTPUT
-        _gRPC_grpc_LIBRARY
-        _gRPC_grpc++_LIBRARY
-        _gRPC_INCLUDE_DIR)
-        message(
-            STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] "
-                   "${_var} = ${${_var}}")
-    endforeach ()
-    unset(_var)
-endif ()
-
-include(FindPackageHandleStandardArgs)
-find_package_handle_standard_args(gRPC REQUIRED_VARS _gRPC_grpc_LIBRARY
-                                  _gRPC_INCLUDE_DIR VERSION_VAR gRPC_VERSION)
diff --git a/third_party/cpp/googleapis/cmake/SelectMSVCRuntime.cmake b/third_party/cpp/googleapis/cmake/SelectMSVCRuntime.cmake
deleted file mode 100644
index feb2fe46c3..0000000000
--- a/third_party/cpp/googleapis/cmake/SelectMSVCRuntime.cmake
+++ /dev/null
@@ -1,39 +0,0 @@
-# ~~~
-# Copyright 2019 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-# ~~~
-
-# When compiling against *-static vcpkg packages we need to use the static C++
-# runtime with MSVC. The default is to use the dynamic runtime, which does not
-# work in this case.  This seems to be the recommended way to change the
-# runtime:
-#
-# ~~~
-#  https://gitlab.kitware.com/cmake/community/wikis/FAQ#how-can-i-build-my-msvc-application-with-a-static-runtime
-# ~~~
-#
-# Note that currently we use VCPKG_TARGET_TRIPLET to determine if the static
-# runtime is needed. In the future we may need to use a more complex expression
-# to determine this, but this is a good start.
-#
-if (MSVC AND VCPKG_TARGET_TRIPLET MATCHES "-static$")
-    foreach (flag_var
-             CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_DEBUG CMAKE_CXX_FLAGS_RELEASE
-             CMAKE_CXX_FLAGS_MINSIZEREL CMAKE_CXX_FLAGS_RELWITHDEBINFO)
-        if (${flag_var} MATCHES "/MD")
-            string(REGEX REPLACE "/MD" "/MT" ${flag_var} "${${flag_var}}")
-        endif ()
-    endforeach (flag_var)
-    unset(flag_var)
-endif ()
diff --git a/third_party/cpp/googleapis/cmake/config-version.cmake.in b/third_party/cpp/googleapis/cmake/config-version.cmake.in
deleted file mode 100644
index 29891a6bde..0000000000
--- a/third_party/cpp/googleapis/cmake/config-version.cmake.in
+++ /dev/null
@@ -1,35 +0,0 @@
-# Copyright 2019 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-set(PACKAGE_VERSION @DOXYGEN_PROJECT_NUMBER@)
-
-# This package has not reached 1.0, there are no compatibility guarantees
-# before then.
-if (@GOOGLE_CLOUD_CPP_CONFIG_VERSION_MAJOR@ EQUAL 0)
-    if ("${PACKAGE_FIND_VERSION}" STREQUAL "")
-        set(PACKAGE_VERSION_COMPATIBLE TRUE)
-    elseif ("${PACKAGE_VERSION}" VERSION_EQUAL "${PACKAGE_FIND_VERSION}")
-        set(PACKAGE_VERSION_COMPATIBLE TRUE)
-        set(PACKAGE_VERSION_EXACT TRUE)
-    else ()
-        set(PACKAGE_VERSION_UNSUITABLE TRUE)
-    endif ()
-elseif("${PACKAGE_VERSION}" VERSION_LESS "${PACKAGE_FIND_VERSION}")
-    set(PACKAGE_VERSION_COMPATIBLE FALSE)
-else()
-    set(PACKAGE_VERSION_COMPATIBLE TRUE)
-    if ("${PACKAGE_VERSION}" VERSION_EQUAL "${PACKAGE_FIND_VERSION}")
-        set(PACKAGE_VERSION_EXACT TRUE)
-    endif()
-endif()
diff --git a/third_party/cpp/googleapis/cmake/config.cmake.in b/third_party/cpp/googleapis/cmake/config.cmake.in
deleted file mode 100644
index 25b324050c..0000000000
--- a/third_party/cpp/googleapis/cmake/config.cmake.in
+++ /dev/null
@@ -1,52 +0,0 @@
-# ~~~
-# Copyright 2019 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-# ~~~
-
-include("${CMAKE_CURRENT_LIST_DIR}/FindProtobufTargets.cmake")
-include("${CMAKE_CURRENT_LIST_DIR}/FindgRPC.cmake")
-
-include("${CMAKE_CURRENT_LIST_DIR}/googleapis-targets.cmake")
-
-foreach (_target
-         api_annotations
-         api_auth
-         api_client
-         api_field_behavior
-         api_http
-         api_resource
-         bigtable
-         cloud_bigquery
-         devtools_cloudtrace_v2_trace
-         devtools_cloudtrace_v2_tracing
-         iam_v1_iam_policy
-         iam_v1_options
-         iam_v1_policy
-         longrunning_operations
-         pubsub
-         rpc_error_details
-         rpc_status
-         spanner
-         storage
-         logging
-         type_expr)
-    set(scoped_name "googleapis-c++::${_target}_protos")
-    set(imported_name "googleapis_cpp_${_target}_protos")
-    if (NOT TARGET ${scoped_name})
-        add_library(${scoped_name} IMPORTED INTERFACE)
-        set_target_properties(${scoped_name}
-                              PROPERTIES INTERFACE_LINK_LIBRARIES
-                              ${imported_name})
-    endif ()
-endforeach ()
diff --git a/third_party/cpp/googleapis/cmake/config.pc.in b/third_party/cpp/googleapis/cmake/config.pc.in
deleted file mode 100644
index af068beb74..0000000000
--- a/third_party/cpp/googleapis/cmake/config.pc.in
+++ /dev/null
@@ -1,26 +0,0 @@
-# Copyright 2019 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-prefix=@CMAKE_INSTALL_PREFIX@
-exec_prefix=${prefix}/@CMAKE_INSTALL_BINDIR@
-libdir=${prefix}/@CMAKE_INSTALL_LIBDIR@
-includedir=${prefix}/@CMAKE_INSTALL_INCLUDEDIR@
-
-Name: @GOOGLE_CLOUD_CPP_PC_NAME@
-Description: @GOOGLE_CLOUD_CPP_PC_DESCRIPTION@
-Requires: @GOOGLE_CLOUD_CPP_PC_REQUIRES@
-Version: @DOXYGEN_PROJECT_NUMBER@
-
-Libs: -L${libdir} @GOOGLE_CLOUD_CPP_PC_LIBS@
-Cflags: -I${includedir}
diff --git a/third_party/cpp/googleapis/default.nix b/third_party/cpp/googleapis/default.nix
deleted file mode 100644
index 32f7d6f9bc..0000000000
--- a/third_party/cpp/googleapis/default.nix
+++ /dev/null
@@ -1,27 +0,0 @@
-# This library contains generated gRPC implementations for Google's
-# public libraries.
-{ pkgs, ... }:
-
-let
-  inherit (pkgs) fetchFromGitHub;
-  stdenv = with pkgs; overrideCC pkgs.stdenv clang_11;
-in stdenv.mkDerivation {
-  name = "googleapis-cpp";
-  src = ./.;
-
-  GOOGLEAPIS_DIR = fetchFromGitHub {
-    owner = "googleapis";
-    repo = "googleapis";
-    rev = "0aba1900ffef672ec5f0da677cf590ee5686e13b";
-    sha256 = "1174mvipmzap4h8as1cl44y1kq7ikipdicnmnswv5yswgkwla84c";
-  };
-
-  buildInputs = with pkgs; [
-    c-ares c-ares.cmake-config grpc protobuf openssl zlib
-  ];
-
-  nativeBuildInputs = with pkgs; [ cmake pkgconfig ];
-
-  # Builds are failing, that's not good.
-  meta.ci = false;
-}
diff --git a/third_party/nixery/default.nix b/third_party/nixery/default.nix
deleted file mode 100644
index 4b894ce1dd..0000000000
--- a/third_party/nixery/default.nix
+++ /dev/null
@@ -1,18 +0,0 @@
-# Technically I suppose Nixery is not a third-party program, but it's
-# outside of this repository ...
-{ pkgs, ... }:
-
-let src = pkgs.fetchFromGitHub {
-  owner = "google";
-  repo = "nixery";
-  rev = "4f6ce83f9296545d6c74321b37d18545764c8827";
-  sha256 = "19aiak1pss6vwm0fwn02827l5ir78fkqglfbdl2gchsyv3gps8bg";
-};
-in import src {
-  inherit pkgs;
-  preLaunch = ''
-    export USER=root
-    cachix use tazjin
-  '';
-  extraPackages = with pkgs.third_party; [ cachix openssh ];
-}
diff --git a/third_party/terraform-gcp/default.nix b/third_party/terraform-gcp/default.nix
deleted file mode 100644
index 3332c12e41..0000000000
--- a/third_party/terraform-gcp/default.nix
+++ /dev/null
@@ -1,3 +0,0 @@
-{ pkgs, ... }:
-
-pkgs.terraform_0_12.withPlugins(p: [ p.google p.google-beta ])