refactor: remove unused imports.

openedx/features/discounts/tests/test_utils.py

@@ -4,7 +4,6 @@ Tests of the openedx.features.discounts.utils module.
 from unittest.mock import patch, Mock
 
 import ddt
-import six
 from django.contrib.auth.models import AnonymousUser
 from django.test import TestCase
 from django.utils.translation import override as override_lang

openedx/features/discounts/tests/test_views.py

@@ -2,7 +2,6 @@
 
 
 import jwt
-import six
 from django.test.client import Client
 from django.urls import reverse