Fix tied weight test (#39680)

Update test_modeling_common.py

Author: Cyrilvallez

tests/test_modeling_common.py

@@ -2565,7 +2565,6 @@ def test_load_save_without_tied_weights(self):
 
     def test_tied_weights_keys(self):
         config, _ = self.model_tester.prepare_config_and_inputs_for_common()
-        config.get_text_config().tie_word_embeddings = True
         for model_class in self.all_model_classes:
             model_tied = model_class(copy.deepcopy(config))