tree 1a7306c5f59f1ef5b85f97360b829419fab35fe0
parent ff0944a40384432994b522c5c6752428402babed
author hlopko <hlopko@google.com> 1523367443 +0200
committer Marcel Hlopko <hlopko@google.com> 1547020483 +0100

Remove traces of optional_flags from crosstool

AFAIK all uses have been migrated to features, so they are not needed anymore.

RELNOTES: CppRules: optional_compiler_flag was removed from CROSSTOOL, use features instead.
PiperOrigin-RevId: 192277764