message: Update build_defs.bzl
  The second check of build_with_mkl_aarch64 indeed doesn't affect anything.
diff: @@ -78,7 +78,6 @@ def if_enable_mkl(if_true, if_false = []):
  """
  return select({
  "@org_tensorflow//third_party/mkl:enable_mkl": if_true,
  - "@org_tensorflow//third_party/mkl:build_with_mkl_aarch64": if_true,
  "//conditions:default": if_false,
  })
  