Replace use of C++17 with disabling a warning

PiperOrigin-RevId: 686572636

.github/workflows/test_cpp.yml

@@ -45,7 +45,8 @@ jobs:
             cache_key: Bazel7
             image: "us-docker.pkg.dev/protobuf-build/containers/common/linux/bazel:7.1.2-cf84e92285ca133b9c8104ad7b14d70e953cbb8e"
             targets: "//src/... //third_party/utf8_range/..."
-          - config: { name: "Bazel7 with Bzlmod", flags: --enable_bzlmod --enable_workspace --cxxopt=-std=c++17 --host_cxxopt=-std=c++17 --cxxopt="-Wno-self-assign-overloaded" }
+            # TODO: remove -Wno-unreachable-code" when dropping C++14
+          - config: { name: "Bazel7 with Bzlmod", flags: --enable_bzlmod --enable_workspace --per_file_copt=.*/absl/strings/string_view.h@-Wno-unreachable-code --cxxopt="-Wno-self-assign-overloaded" }
             cache_key: Bazel7bzlmod
             image: "us-docker.pkg.dev/protobuf-build/containers/common/linux/bazel:7.1.2-cf84e92285ca133b9c8104ad7b14d70e953cbb8e"
             targets: "//src/... //third_party/utf8_range/..."

cmake/dependencies.cmake

@@ -1,34 +0,0 @@
-# Auto-generated by @//cmake:make_dependencies
-#
-# This file contains lists of external dependencies based on our Bazel
-# config. It should be included from a hand-written CMake file that uses
-# them.
-#
-# Changes to this file will be overwritten based on Bazel definitions.
-
-if(${CMAKE_VERSION} VERSION_GREATER 3.10 OR ${CMAKE_VERSION} VERSION_EQUAL 3.10)
-  include_guard()
-endif()
-
-set(abseil-cpp-version "20230802.1")
-set(bazel_skylib-version "1.7.0")
-set(jsoncpp-version "1.9.5")
-set(rules_cc-version "0.0.13")
-set(rules_fuzzing-version "0.5.2")
-set(rules_java-version "7.11.1")
-set(rules_jvm_external-version "6.3")
-set(rules_kotlin-version "1.9.6")
-set(rules_license-version "1.0.0")
-set(rules_pkg-version "1.0.1")
-set(rules_python-version "0.28.0")
-set(rules_rust-version "0.51.0")
-set(platforms-version "0.0.8")
-set(zlib-version "1.3.1")
-set(bazel_features-version "1.17.0")
-set(rules_shell-version "0.2.0")
-set(googletest-version "1.14.0")
-set(rules_buf-version "0.3.0")
-set(rules_testing-version "0.6.0")
-set(rules_proto-version "4.0.0")
-
-