fix linting error

Author: charlesdong1991

pandas/tests/test_strings.py

@@ -3444,7 +3444,6 @@ def test_method_on_bytes(self):
                 ['ad', 'be', 'cf'], 'S2').astype(object))
             tm.assert_series_equal(result, expected)
 
-
     @pytest.mark.filterwarnings("ignore: '.' is interpreted as a literal")
     @pytest.mark.parametrize("regex, expected_array", [
         (True, ['foofoofoo', 'foofoofoo']),