Enable more test_torchscript (#16679)

* update _create_and_check_torchscript

* Enable test_torchscript

* clear_class_registry

Co-authored-by: ydshieh <ydshieh@users.noreply.github.com>

tests/glpn/test_modeling_glpn.py

@@ -150,7 +150,6 @@ class GLPNModelTest(ModelTesterMixin, unittest.TestCase):
     test_head_masking = False
     test_pruning = False
     test_resize_embeddings = False
-    test_torchscript = False
 
     def setUp(self):
         self.model_tester = GLPNModelTester(self)