Update model_importer.py

src/frontends/onnx/tests/tests_python/utils/model_importer.py

@@ -142,25 +142,15 @@ def _execute_pb_data(
         return executed_tests
 
     def _add_model_import_test(self, model_test: ExtOnnxTestCase) -> None:
-        # model is loaded at runtime, note sometimes it could even
-        # never loaded if the test skipped
-        model_marker = [None]  # type: List[Optional[Union[ModelProto, NodeProto]]]
-
         def run_import(test_self: Any, device: Text) -> None:
             model = ModelImportRunner._load_onnx_model(model_test.model_dir, model_test.model)
-            model_marker[0] = model
             assert import_onnx_model(model)
 
         self._add_test("ModelImport", model_test.name, run_import, model_marker)
 
     def _add_model_execution_test(self, model_test: ExtOnnxTestCase) -> None:
-        # model is loaded at runtime, note sometimes it could even
-        # never loaded if the test skipped
-        model_marker = [None]  # type: List[Optional[Union[ModelProto, NodeProto]]]
-
         def run_execution(test_self: Any, device: Text) -> None:
             model = ModelImportRunner._load_onnx_model(model_test.model_dir, model_test.model)
-            model_marker[0] = model
             prepared_model = self.backend.prepare(model, device)
             assert prepared_model is not None
             executed_tests = ModelImportRunner._execute_npz_data(