Move RegistrationView from user_api to user_authn.

common/djangoapps/student/tests/test_retirement.py

@@ -13,6 +13,7 @@ from django.contrib.auth.models import User
 from django.test import TestCase
 from django.urls import reverse
 
+from openedx.core.djangolib.testing.utils import skip_unless_lms
 from student.models import (
     _get_all_retired_emails_by_email,
     _get_all_retired_usernames_by_username,
@@ -258,6 +259,7 @@ def test_get_potentially_retired_user_bad_hash():
 
 
 @ddt.ddt
+@skip_unless_lms
 class TestRegisterRetiredUsername(TestCase):
     """
     Tests to ensure that retired usernames can no longer be used in registering new accounts.