message: Add no_pip tag to scan_dataset_op_test
diff: @@ -396,6 +396,7 @@ py_test(
  size = "small",
  srcs = ["scan_dataset_op_test.py"],
  srcs_version = "PY2AND3",
  + tags = ["no_pip"],
  deps = [
  ":dataset_serialization_test",
  "//tensorflow/contrib/data/python/ops:transformation_ops",
  