CLN: fix invalid line in test_offsets.py

Author: jreback

pandas/tseries/tests/test_offsets.py

@@ -2869,4 +2869,3 @@ def test_str_for_named_is_name(self):
 if __name__ == '__main__':
     nose.runmodule(argv=[__file__, '-vvs', '-x', '--pdb', '--pdb-failure'],
                    exit=False)
-