message: Remove imports from python_op_gen_test
diff: @@ -20,9 +20,6 @@ limitations under the License.
  #include "tensorflow/core/framework/op_gen_lib.h"
  #include "tensorflow/core/platform/test.h"
  -#include "tensorflow/core/lib/io/path.h"
  -#include "tensorflow/core/lib/strings/str_util.h"
  -
  namespace tensorflow {
  namespace {
  