message: Removing unused macros from build_config.bzl.
diff: @@ -480,9 +480,6 @@ def tf_proto_library_py(
  def tf_jspb_proto_library(**kwargs):
  pass
  -def tf_nano_proto_library(**kwargs):
  - pass
  -
  def tf_proto_library(
  name,
  srcs = [],
  @@ -535,23 +532,6 @@ def tf_proto_library(
  visibility = visibility,
  )
  -# A list of all files under platform matching the pattern in 'files'. In
  -# contrast with 'tf_platform_srcs' below, which seletive collects files that
  -# must be compiled in the 'default' platform, this is a list of all headers
  -# mentioned in the platform/* files.
  -def tf_platform_hdrs(files):
  - return native.glob(["*/" + f for f in files])
  -
  -def tf_platform_srcs(files):
  - base_set = ["default/" + f for f in files]
  - windows_set = base_set + ["windows/" + f for f in files]
  - posix_set = base_set + ["posix/" + f for f in files]
  -
  - return select({
  - clean_dep("//tensorflow:windows"): native.glob(windows_set),
  - "//conditions:default": native.glob(posix_set),
  - })
  -
  def tf_additional_lib_hdrs():
  return [
  "//tensorflow/core/platform/default:context.h",
  