fixup! feat: remove ENABLE_MKTG_SITE from enrollment, courseware, and mobile API

Author: feanil

lms/djangoapps/mobile_api/testutils.py

@@ -17,7 +17,6 @@
 
 import ddt
 import pytz
-from django.conf import settings
 from django.urls import reverse
 from django.utils import timezone
 from opaque_keys.edx.keys import CourseKey