changed test_publish_error to use test server

Signed-off-by: Omswastik-11 <omswastikpanda11@gmail.com>

Author: Omswastik-11

tests/test_flows/test_flow.py

@@ -301,7 +301,6 @@ def test_semi_legal_flow(self):
     @pytest.mark.uses_test_server()
     @mock.patch("openml.flows.functions.get_flow")
     @mock.patch("openml.flows.functions.flow_exists")
-    @mock.patch("openml._api_calls._perform_api_call")
     def test_publish_error(self, api_call_mock, flow_exists_mock, get_flow_mock):
         model = sklearn.ensemble.RandomForestClassifier()
         flow = self.extension.model_to_flow(model)