Changes to Deletes homepage thumbnails from a universe.

the endpoint scheme security roblox-oauth2 was removed from the API

the query request parameter homepageThumbnailIds became required

the response's body type changed from object to string for status 400

the response's body type changed from object to string for status 401

the response's body type changed from object to string for status 403

removed the media type application/json for the response with the status 500