fix: Don't include OpenEdxEventsTestMixin twice.

This mixin is already included via one of the other mixins on this test
class so including it again was messing with the MRO for the test
classes.

Author: feanil

openedx/core/djangoapps/user_authn/views/tests/test_register.py

@@ -2687,7 +2687,7 @@ def test_expired_pipeline(self):
 
 @skipUnless(settings.FEATURES.get("ENABLE_THIRD_PARTY_AUTH"), "third party auth not enabled")
 class TestFacebookRegistrationView(
-    OpenEdxEventsTestMixin, ThirdPartyRegistrationTestMixin, ThirdPartyOAuthTestMixinFacebook, TransactionTestCase
+    ThirdPartyRegistrationTestMixin, ThirdPartyOAuthTestMixinFacebook, TransactionTestCase
 ):
     """Tests the User API registration endpoint with Facebook authentication."""
 
@@ -2708,7 +2708,7 @@ def test_social_auth_exception(self):
 
 @skipUnless(settings.FEATURES.get("ENABLE_THIRD_PARTY_AUTH"), "third party auth not enabled")
 class TestGoogleRegistrationView(
-    OpenEdxEventsTestMixin, ThirdPartyRegistrationTestMixin, ThirdPartyOAuthTestMixinGoogle, TransactionTestCase
+    ThirdPartyRegistrationTestMixin, ThirdPartyOAuthTestMixinGoogle, TransactionTestCase
 ):
     """Tests the User API registration endpoint with Google authentication."""