Rollback 4fa8cfe3f4

Breaks the intended C++ version on some CI builds

PiperOrigin-RevId: 474022587
Change-Id: I41a58893802c90864e0f2cc3d15e6c169c59146d

ci/linux-presubmit.sh

@@ -72,6 +72,7 @@ time docker run \
   --workdir="/src" \
   --rm \
   --env="CC=/usr/local/bin/gcc" \
+  --env="BAZEL_CXXOPTS=-std=c++14" \
   ${LINUX_GCC_FLOOR_CONTAINER} \
     /usr/local/bin/bazel test ... \
       --copt="-Wall" \

ci/macos-presubmit.sh

@@ -66,6 +66,7 @@ for absl in 0 1; do
   ${BAZEL_BIN} test ... \
     --copt="-Wall" \
     --copt="-Werror" \
+    --cxxopt="-std=c++14" \
     --define="absl=${absl}" \
     --features=external_include_paths \
     --keep_going \