chore(3p/abseil_cpp): unvendor abseil_cpp r/3786

we weren't actually using these sources anymore, okay?

Change-Id: If701571d9716de308d3512e1eb22c35db0877a66
Reviewed-on: https://cl.tvl.fyi/c/depot/+/5248
Tested-by: BuildkiteCI
Reviewed-by: grfn <grfn@gws.fyi>
Autosubmit: tazjin <tazjin@tvl.su>

1 files changed, 0 insertions, 184 deletions

diff --git a/third_party/abseil_cpp/absl/functional/bind_front.h b/third_party/abseil_cpp/absl/functional/bind_front.h
deleted file mode 100644
index 5b47970e3577..000000000000
--- a/third_party/abseil_cpp/absl/functional/bind_front.h
+++ /dev/null
@@ -1,184 +0,0 @@
-// Copyright 2018 The Abseil Authors.
-//
-// 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
-//
-//      https://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.
-//
-// -----------------------------------------------------------------------------
-// File: bind_front.h
-// -----------------------------------------------------------------------------
-//
-// `absl::bind_front()` returns a functor by binding a number of arguments to
-// the front of a provided (usually more generic) functor. Unlike `std::bind`,
-// it does not require the use of argument placeholders. The simpler syntax of
-// `absl::bind_front()` allows you to avoid known misuses with `std::bind()`.
-//
-// `absl::bind_front()` is meant as a drop-in replacement for C++20's upcoming
-// `std::bind_front()`, which similarly resolves these issues with
-// `std::bind()`. Both `bind_front()` alternatives, unlike `std::bind()`, allow
-// partial function application. (See
-// https://en.wikipedia.org/wiki/Partial_application).
-
-#ifndef ABSL_FUNCTIONAL_BIND_FRONT_H_
-#define ABSL_FUNCTIONAL_BIND_FRONT_H_
-
-#include "absl/functional/internal/front_binder.h"
-#include "absl/utility/utility.h"
-
-namespace absl {
-ABSL_NAMESPACE_BEGIN
-
-// bind_front()
-//
-// Binds the first N arguments of an invocable object and stores them by value.
-//
-// Like `std::bind()`, `absl::bind_front()` is implicitly convertible to
-// `std::function`.  In particular, it may be used as a simpler replacement for
-// `std::bind()` in most cases, as it does not require  placeholders to be
-// specified. More importantly, it provides more reliable correctness guarantees
-// than `std::bind()`; while `std::bind()` will silently ignore passing more
-// parameters than expected, for example, `absl::bind_front()` will report such
-// mis-uses as errors.
-//
-// absl::bind_front(a...) can be seen as storing the results of
-// std::make_tuple(a...).
-//
-// Example: Binding a free function.
-//
-//   int Minus(int a, int b) { return a - b; }
-//
-//   assert(absl::bind_front(Minus)(3, 2) == 3 - 2);
-//   assert(absl::bind_front(Minus, 3)(2) == 3 - 2);
-//   assert(absl::bind_front(Minus, 3, 2)() == 3 - 2);
-//
-// Example: Binding a member function.
-//
-//   struct Math {
-//     int Double(int a) const { return 2 * a; }
-//   };
-//
-//   Math math;
-//
-//   assert(absl::bind_front(&Math::Double)(&math, 3) == 2 * 3);
-//   // Stores a pointer to math inside the functor.
-//   assert(absl::bind_front(&Math::Double, &math)(3) == 2 * 3);
-//   // Stores a copy of math inside the functor.
-//   assert(absl::bind_front(&Math::Double, math)(3) == 2 * 3);
-//   // Stores std::unique_ptr<Math> inside the functor.
-//   assert(absl::bind_front(&Math::Double,
-//                           std::unique_ptr<Math>(new Math))(3) == 2 * 3);
-//
-// Example: Using `absl::bind_front()`, instead of `std::bind()`, with
-//          `std::function`.
-//
-//   class FileReader {
-//    public:
-//     void ReadFileAsync(const std::string& filename, std::string* content,
-//                        const std::function<void()>& done) {
-//       // Calls Executor::Schedule(std::function<void()>).
-//       Executor::DefaultExecutor()->Schedule(
-//           absl::bind_front(&FileReader::BlockingRead, this,
-//                            filename, content, done));
-//     }
-//
-//    private:
-//     void BlockingRead(const std::string& filename, std::string* content,
-//                       const std::function<void()>& done) {
-//       CHECK_OK(file::GetContents(filename, content, {}));
-//       done();
-//     }
-//   };
-//
-// `absl::bind_front()` stores bound arguments explicitly using the type passed
-// rather than implicitly based on the type accepted by its functor.
-//
-// Example: Binding arguments explicitly.
-//
-//   void LogStringView(absl::string_view sv) {
-//     LOG(INFO) << sv;
-//   }
-//
-//   Executor* e = Executor::DefaultExecutor();
-//   std::string s = "hello";
-//   absl::string_view sv = s;
-//
-//   // absl::bind_front(LogStringView, arg) makes a copy of arg and stores it.
-//   e->Schedule(absl::bind_front(LogStringView, sv)); // ERROR: dangling
-//                                                     // string_view.
-//
-//   e->Schedule(absl::bind_front(LogStringView, s));  // OK: stores a copy of
-//                                                     // s.
-//
-// To store some of the arguments passed to `absl::bind_front()` by reference,
-//  use std::ref()` and `std::cref()`.
-//
-// Example: Storing some of the bound arguments by reference.
-//
-//   class Service {
-//    public:
-//     void Serve(const Request& req, std::function<void()>* done) {
-//       // The request protocol buffer won't be deleted until done is called.
-//       // It's safe to store a reference to it inside the functor.
-//       Executor::DefaultExecutor()->Schedule(
-//           absl::bind_front(&Service::BlockingServe, this, std::cref(req),
-//           done));
-//     }
-//
-//    private:
-//     void BlockingServe(const Request& req, std::function<void()>* done);
-//   };
-//
-// Example: Storing bound arguments by reference.
-//
-//   void Print(const std::string& a, const std::string& b) {
-//     std::cerr << a << b;
-//   }
-//
-//   std::string hi = "Hello, ";
-//   std::vector<std::string> names = {"Chuk", "Gek"};
-//   // Doesn't copy hi.
-//   for_each(names.begin(), names.end(),
-//            absl::bind_front(Print, std::ref(hi)));
-//
-//   // DO NOT DO THIS: the functor may outlive "hi", resulting in
-//   // dangling references.
-//   foo->DoInFuture(absl::bind_front(Print, std::ref(hi), "Guest"));  // BAD!
-//   auto f = absl::bind_front(Print, std::ref(hi), "Guest"); // BAD!
-//
-// Example: Storing reference-like types.
-//
-//   void Print(absl::string_view a, const std::string& b) {
-//     std::cerr << a << b;
-//   }
-//
-//   std::string hi = "Hello, ";
-//   // Copies "hi".
-//   absl::bind_front(Print, hi)("Chuk");
-//
-//   // Compile error: std::reference_wrapper<const string> is not implicitly
-//   // convertible to string_view.
-//   // absl::bind_front(Print, std::cref(hi))("Chuk");
-//
-//   // Doesn't copy "hi".
-//   absl::bind_front(Print, absl::string_view(hi))("Chuk");
-//
-template <class F, class... BoundArgs>
-constexpr functional_internal::bind_front_t<F, BoundArgs...> bind_front(
-    F&& func, BoundArgs&&... args) {
-  return functional_internal::bind_front_t<F, BoundArgs...>(
-      absl::in_place, absl::forward<F>(func),
-      absl::forward<BoundArgs>(args)...);
-}
-
-ABSL_NAMESPACE_END
-}  // namespace absl
-
-#endif  // ABSL_FUNCTIONAL_BIND_FRONT_H_