Run tests if skip condition not met (#18764)

* Run tests if skip condition not met

* Update comment - remove outdated ref to TF 2.8

tests/models/regnet/test_modeling_tf_regnet.py

@@ -138,10 +138,10 @@ class TFRegNetModelTest(TFModelTesterMixin, unittest.TestCase):
 
     @unittest.skipIf(
         not is_tf_available() or len(tf.config.list_physical_devices("GPU")) == 0,
-        reason="TF (<=2.8) does not support backprop for grouped convolutions on CPU.",
+        reason="TF does not support backprop for grouped convolutions on CPU.",
     )
     def test_keras_fit(self):
-        pass
+        super().test_keras_fit()
 
     @unittest.skip(reason="RegNet does not support input and output embeddings")
     def test_model_common_attributes(self):