TST: this passes now, as unordered categories compare unorderely

Author: TomAugspurger

pandas/tests/reshape/test_merge.py

@@ -1468,8 +1468,6 @@ def test_other_columns(self, left, right):
 
     @pytest.mark.parametrize(
         'change', [lambda x: x,
-                   lambda x: x.astype('category',
-                                      categories=['bar', 'foo']),
                    lambda x: x.astype('category',
                                       categories=['foo', 'bar', 'bah']),
                    lambda x: x.astype('category', ordered=True)])