Refactor: Removed un-necessary object base class (#32230)

* Refactored to remove un-necessary object base class.

* small fix.

tests/test_configuration_common.py

@@ -23,7 +23,7 @@ from transformers import is_torch_available
 from .utils.test_configuration_utils import config_common_kwargs
 
 
-class ConfigTester(object):
+class ConfigTester:
     def __init__(self, parent, config_class=None, has_text_modality=True, common_properties=None, **kwargs):
         self.parent = parent
         self.config_class = config_class