message: Remove unused in bazel
diff: load("//tensorflow:tensorflow.bzl", "filegroup")
  load("//tensorflow/core/platform:rules_cc.bzl", "cc_library")
  +
  +# buildifier: disable=same-origin-load
  load(
  "//tensorflow:tensorflow.bzl",
  - "if_libtpu",
  - "tf_cc_test",
  - "tf_copts",
  "tf_cuda_cc_test",
  - "tf_cuda_library",
  )
  load(
  "//tensorflow/core/platform:build_config.bzl",
  