Automated rollback of commit 6dbdb050cb9eb9d6b30381eda0c92604683914dc.

*** Reason for rollback ***

b/37401971

*** Original change description ***

Make C++ archiving use action_configs instead of hardcoded flags

RELNOTES: Use action_config in crosstool for static library archiving, remove ar_flag.
PiperOrigin-RevId: 153344597
diff --git a/third_party/com/github/bazelbuild/bazel/src/main/protobuf/crosstool_config.proto b/third_party/com/github/bazelbuild/bazel/src/main/protobuf/crosstool_config.proto
index 0a16383..f1123f9 100644
--- a/third_party/com/github/bazelbuild/bazel/src/main/protobuf/crosstool_config.proto
+++ b/third_party/com/github/bazelbuild/bazel/src/main/protobuf/crosstool_config.proto
@@ -386,7 +386,6 @@
   repeated string ld_embed_flag = 23;
   // Ar flags for combining object files into archives. If this is not set, it
   // defaults to "rcsD".
-  // TODO(b/37271982): Remove after blaze with ar action_config release
   repeated string ar_flag = 47;
   // Legacy field, ignored by Bazel.
   repeated string ar_thin_archives_flag = 48;