Fix lint on PY2

Author: ilevkivskyi

python2/test_typing.py

@@ -257,7 +257,6 @@ def test_repr(self):
         u = Union[List[int], int]
         self.assertEqual(repr(u), 'typing.Union[typing.List[int], int]')
 
-
     def test_cannot_subclass(self):
         with self.assertRaises(TypeError):
             class C(Union):