squash!: Fix lint issues

Author: rodmgwgu

common/djangoapps/student/role_helpers.py

@@ -15,7 +15,6 @@
 from openedx.core.lib.cache_utils import request_cached
 from common.djangoapps.student.roles import (
     AuthzCompatCourseAccessRole,
-    CourseAccessRole,
     CourseBetaTesterRole,
     CourseInstructorRole,
     CourseStaffRole,