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>

42 files changed, 0 insertions, 1288 deletions

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 2982dae0e165..000000000000
--- 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 $(nproc); \
-    make install; \
-    ldconfig
-
-# Install grpc from source
-WORKDIR /var/tmp/ci
-COPY install-grpc.sh /var/tmp/ci
-RUN /var/tmp/ci/install-grpc.sh
diff --git a/third_party/cpp/googleapis/ci/kokoro/Dockerfile.fedora b/third_party/cpp/googleapis/ci/kokoro/Dockerfile.fedora
deleted file mode 100644
index c56ace3b1aaf..000000000000
--- a/third_party/cpp/googleapis/ci/kokoro/Dockerfile.fedora
+++ /dev/null
@@ -1,38 +0,0 @@
-# Copyright 2019 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-ARG DISTRO_VERSION=30
-FROM fedora:${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 8ef65dd9b2e6..000000000000
--- 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 d3660dafa25a..000000000000
--- 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 4dd9e7eb3dff..000000000000
--- 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 fbd886f02852..000000000000
--- 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 e69de29bb2d1..000000000000
--- 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 e69de29bb2d1..000000000000
--- 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 e69de29bb2d1..000000000000
--- 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 e69de29bb2d1..000000000000
--- 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 213d93419a12..000000000000
--- 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 e69de29bb2d1..000000000000
--- 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 e69de29bb2d1..000000000000
--- 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 e69de29bb2d1..000000000000
--- 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 e69de29bb2d1..000000000000
--- 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 e69de29bb2d1..000000000000
--- 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 e69de29bb2d1..000000000000
--- 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 e69de29bb2d1..000000000000
--- 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 e69de29bb2d1..000000000000
--- 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 21b8908134d4..000000000000
--- 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 d6e57b91e232..000000000000
--- 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 572018f994dc..000000000000
--- 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 ea2dda5ec4e6..000000000000
--- 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 9a87337870e3..000000000000
--- 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 030ed4a2aa85..000000000000
--- 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 486d24aa47db..000000000000
--- 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 42e85f39b6fc..000000000000
--- 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 e69de29bb2d1..000000000000
--- 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 e69de29bb2d1..000000000000
--- 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 77a3a1f9fefe..000000000000
--- 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 e69de29bb2d1..000000000000
--- 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 e69de29bb2d1..000000000000
--- 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 e69de29bb2d1..000000000000
--- 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 e69de29bb2d1..000000000000
--- 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 e69de29bb2d1..000000000000
--- 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 e69de29bb2d1..000000000000
--- 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 e69de29bb2d1..000000000000
--- 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 e69de29bb2d1..000000000000
--- 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 e69de29bb2d1..000000000000
--- 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 e69de29bb2d1..000000000000
--- 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 e69de29bb2d1..000000000000
--- 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 e69de29bb2d1..000000000000
--- a/third_party/cpp/googleapis/ci/kokoro/install/ubuntu-18.04.cfg
+++ /dev/null