Default Moodle Footer Links

Data retention summary:

1. Go to Site administration → Users → Privacy and policies → Privacy settings.

2. Check the 'Show data retention summary' checkbox again and save the changes.

Mobile App

You can simply delete the App download page URL in 'Mobile appearance' in the Site administration.

Moodle Docs

Site administration > Appearance > Moodle Docs > Delete the value at Moodle Docs document root field.

Purge cache (visible only for users with admin privileges)

1. Site administration > Appearance > Development > Debugging

2. Debug messages: Developer