Remove unused fixture from test_config_pickle_protocol (#13590)

Author: adamtheturtle

tests/test_config/test_config.py

@@ -143,7 +143,7 @@ def test_config_not_found(tmp_path):
 
 
 @pytest.mark.parametrize('protocol', list(range(pickle.HIGHEST_PROTOCOL)))
-def test_config_pickle_protocol(tmp_path, protocol: int):
+def test_config_pickle_protocol(protocol: int):
     config = Config()
 
     pickled_config = pickle.loads(pickle.dumps(config, protocol))