feat: remove 403 for disabled advanced settings (#32906)

cms/djangoapps/contentstore/rest_api/v0/views/advanced_settings.py

@@ -3,7 +3,6 @@
 from django import forms
 import edx_api_doc_tools as apidocs
 from opaque_keys.edx.keys import CourseKey
-from rest_framework import status
 from rest_framework.exceptions import ValidationError
 from rest_framework.request import Request
 from rest_framework.response import Response
@@ -12,7 +11,6 @@ from xmodule.modulestore.django import modulestore
 
 from cms.djangoapps.models.settings.course_metadata import CourseMetadata
 from cms.djangoapps.contentstore.api.views.utils import get_bool_param
-from cms.djangoapps.contentstore.toggles import use_new_advanced_settings_page
 from common.djangoapps.student.auth import has_studio_read_access, has_studio_write_access
 from openedx.core.lib.api.view_utils import DeveloperErrorViewMixin, verify_course_exists, view_auth_classes
 from ..serializers import CourseAdvancedSettingsSerializer
@@ -117,8 +115,6 @@ class AdvancedCourseSettingsView(DeveloperErrorViewMixin, APIView):
         if not filter_query_data.is_valid():
             raise ValidationError(filter_query_data.errors)
         course_key = CourseKey.from_string(course_id)
-        if not use_new_advanced_settings_page(course_key):
-            return Response(status=status.HTTP_403_FORBIDDEN)
         if not has_studio_read_access(request.user, course_key):
             self.permission_denied(request)
         course_block = modulestore().get_course(course_key)