message: Remove tf_portable_proto_library rules.
  All dependencies on this have been purged.
diff: @@ -115,11 +115,6 @@ def tf_android_core_proto_headers(core_proto_sources_relative):
  for p in core_proto_sources_relative
  ])
  -# Wrapper for portable protos which currently just creates an empty rule.
  -def tf_portable_proto_library(name, proto_deps, deps = [], **kwargs):
  - _ignore = [kwargs]
  - cc_library(name = name, deps = deps + [dep + "_cc" for dep in proto_deps])
  -
  def tf_portable_full_lite_protos(full, lite):
  return select({
  "//tensorflow:mobile_lite_protos": lite,
  