refactor: migrate DISABLE_MOBILE_COURSE_AVAILABLE off FEATURES-as-dict

Author: feanil

cms/djangoapps/contentstore/rest_api/v1/views/proctoring.py

@@ -267,7 +267,7 @@ def get(self, request: Request, course_id: str) -> Response:
 
         course_block = modulestore().get_course(course_key)
         advanced_dict = CourseMetadata.fetch(course_block)
-        if settings.FEATURES.get('DISABLE_MOBILE_COURSE_AVAILABLE', False):
+        if settings.DISABLE_MOBILE_COURSE_AVAILABLE:
             advanced_dict.get('mobile_available')['deprecated'] = True
 
         proctoring_errors = CourseMetadata.validate_proctoring_settings(course_block, advanced_dict, request.user)

cms/djangoapps/contentstore/tests/test_course_settings.py

@@ -121,7 +121,7 @@ def setUp(self):
         # restricted.
         CourseStaffRole(self.course.id).add_users(self.nonstaff)
 
-    @override_settings(FEATURES={'DISABLE_MOBILE_COURSE_AVAILABLE': True})
+    @override_settings(DISABLE_MOBILE_COURSE_AVAILABLE=True)
     def test_mobile_field_available(self):
 
         """

cms/djangoapps/contentstore/views/course.py

@@ -1595,7 +1595,7 @@ def advanced_settings_handler(request, course_key_string):
         course_block = get_course_and_check_access(course_key, request.user)
 
         advanced_dict = CourseMetadata.fetch(course_block)
-        if settings.FEATURES.get('DISABLE_MOBILE_COURSE_AVAILABLE', False):
+        if settings.DISABLE_MOBILE_COURSE_AVAILABLE:
             advanced_dict.get('mobile_available')['deprecated'] = True
 
         if 'text/html' in request.META.get('HTTP_ACCEPT', '') and request.method == 'GET':