Remove the backport of mock

auditlog_tests/tests.py

@@ -1,9 +1,9 @@
 import datetime
 import itertools
 import json
+from unittest import mock
 
 import django
-import mock
 from dateutil.tz import gettz
 from django.conf import settings
 from django.contrib.auth import get_user_model

tox.ini

@@ -18,7 +18,6 @@ deps =
     coverage
     codecov
     django-multiselectfield
-    mock
     psycopg2-binary>=2.8,<2.9
 passenv=
     TEST_DB_HOST