feat!: General cleanup of legacy Studio page waffle flags and related code.

Remove the waffle flags and helper functions for all legacy Studio pages
that have been replaced by the Authoring MFE:
- legacy_studio.schedule_details
- legacy_studio.advanced_settings
- legacy_studio.grading
- legacy_studio.import
- legacy_studio.export
- legacy_studio.course_team
- legacy_studio.certificates
- legacy_studio.configurations

Also removes the course_waffle_flags REST API endpoint
(GET /api/contentstore/v1/course_waffle_flags) and its serializer, view,
and tests, as these only existed to expose the now-removed flags.

Simplifies URL helpers in utils.py to unconditionally return MFE URLs.

This work is part of #36108

BREAKING CHANGE: All of the above waffle flags are removed. The
GET /api/contentstore/v1/course_waffle_flags endpoint is removed.

Author: irfanuddinahmad

cms/djangoapps/contentstore/toggles.py

@@ -159,9 +159,6 @@ def use_react_markdown_editor(course_key):
     return ENABLE_REACT_MARKDOWN_EDITOR.is_enabled(course_key)
 
 
-
-
-
 # .. toggle_name: contentstore.new_studio_mfe.use_new_video_uploads_page
 # .. toggle_implementation: CourseWaffleFlag
 # .. toggle_default: False
@@ -216,9 +213,6 @@ def use_new_unit_page(course_key):
     return not LEGACY_STUDIO_UNIT_EDITOR.is_enabled(course_key)
 
 
-
-
-
 # .. toggle_name: contentstore.mock_video_uploads
 # .. toggle_implementation: WaffleFlag
 # .. toggle_default: False

cms/djangoapps/contentstore/utils.py

@@ -297,39 +297,35 @@ def get_schedule_details_url(course_locator) -> str:
     Gets course authoring microfrontend URL for schedule and details pages view.
     """
     mfe_base_url = get_course_authoring_url(course_locator)
-    if mfe_base_url:
-        return f'{mfe_base_url}/course/{course_locator}/settings/details'
-    return None
+    course_mfe_url = f'{mfe_base_url}/course/{course_locator}/settings/details'
+    return course_mfe_url if mfe_base_url else None
 
 
 def get_advanced_settings_url(course_locator) -> str | None:
     """
     Gets course authoring microfrontend URL for advanced settings page view.
     """
     mfe_base_url = get_course_authoring_url(course_locator)
-    if mfe_base_url:
-        return f'{mfe_base_url}/course/{course_locator}/settings/advanced'
-    return None
+    course_mfe_url = f'{mfe_base_url}/course/{course_locator}/settings/advanced'
+    return course_mfe_url if mfe_base_url else None
 
 
 def get_grading_url(course_locator) -> str:
     """
     Gets course authoring microfrontend URL for grading page view.
     """
     mfe_base_url = get_course_authoring_url(course_locator)
-    if mfe_base_url:
-        return f'{mfe_base_url}/course/{course_locator}/settings/grading'
-    return None
+    course_mfe_url = f'{mfe_base_url}/course/{course_locator}/settings/grading'
+    return course_mfe_url if mfe_base_url else None
 
 
 def get_course_team_url(course_locator) -> str:
     """
     Gets course authoring microfrontend URL for course team page view.
     """
     mfe_base_url = get_course_authoring_url(course_locator)
-    if mfe_base_url:
-        return f'{mfe_base_url}/course/{course_locator}/course_team'
-    return None
+    course_mfe_url = f'{mfe_base_url}/course/{course_locator}/course_team'
+    return course_mfe_url if mfe_base_url else None
 
 
 def get_updates_url(course_locator) -> str:
@@ -349,19 +345,17 @@ def get_import_url(course_locator) -> str | None:
     Gets course authoring microfrontend URL for import page view.
     """
     mfe_base_url = get_course_authoring_url(course_locator)
-    if mfe_base_url:
-        return f'{mfe_base_url}/course/{course_locator}/import'
-    return None
+    course_mfe_url = f'{mfe_base_url}/course/{course_locator}/import'
+    return course_mfe_url if mfe_base_url else None
 
 
 def get_export_url(course_locator) -> str | None:
     """
     Gets course authoring microfrontend URL for export page view.
     """
     mfe_base_url = get_course_authoring_url(course_locator)
-    if mfe_base_url:
-        return f'{mfe_base_url}/course/{course_locator}/export'
-    return None
+    course_mfe_url = f'{mfe_base_url}/course/{course_locator}/export'
+    return course_mfe_url if mfe_base_url else None
 
 
 def get_optimizer_url(course_locator) -> str:
@@ -445,9 +439,8 @@ def get_certificates_url(course_locator) -> str:
     Gets course authoring microfrontend URL for certificates page view.
     """
     mfe_base_url = get_course_authoring_url(course_locator)
-    if mfe_base_url:
-        return f'{mfe_base_url}/course/{course_locator}/certificates'
-    return None
+    course_mfe_url = f'{mfe_base_url}/course/{course_locator}/certificates'
+    return course_mfe_url if mfe_base_url else None
 
 
 def get_textbooks_url(course_locator) -> str:
@@ -467,7 +460,8 @@ def get_group_configurations_url(course_locator) -> str:
     Gets course authoring microfrontend URL for group configurations page view.
     """
     mfe_base_url = get_course_authoring_url(course_locator)
-    return f'{mfe_base_url}/course/{course_locator}/group_configurations' if mfe_base_url else None
+    course_mfe_url = f'{mfe_base_url}/course/{course_locator}/group_configurations'
+    return course_mfe_url if mfe_base_url else None
 
 
 def get_custom_pages_url(course_locator) -> str: