Another pip issue.

common/djangoapps/third_party_auth/tests/test_provider.py

@@ -164,7 +164,6 @@ class RegistryTest(testutil.TestCase):
         Test that an OAuth2 provider can have a slug that differs from the backend name.
         """
         dummy_provider = self.configure_oauth_provider(enabled=True, name="dummy", slug="default", backend_name="dummy")
-        self.assertIn(dummy_provider, provider.Registry._enabled_providers())
         self.assertIn(dummy_provider, provider.Registry.get_enabled_by_backend_name('dummy'))
 
     def test_oauth2_enabled_only_for_supplied_backend(self):