remove empty line

Author: RandySheriffH

tests/test_backend.py

@@ -3029,6 +3029,5 @@ def test_cudnngru(self):
         outputs = cudnngru.call(x, tuple([h]))
         self.run_test_case({}, [], [outputs[0].name], rtol=1e-05, atol=1e-04)
 
-
 if __name__ == '__main__':
     unittest_main()

tf2onnx/onnx_opset/rnn.py

@@ -10,7 +10,6 @@
 from __future__ import unicode_literals
 
 import logging
-import os
 import numpy as np
 from tf2onnx import utils
 from tf2onnx.handler import tf_op