I am trying to revert the thumbnail of youtube videos, via the v3 API, to the thumbnail that is automatically generated by YouTube from a screenshot of the video when it's uploaded.
So, basically, I wanna delete the custom thumbnail I uploaded.
The documentation, as far as I can tell, only shows how to set a new thumbnail by uploading an Image, but has nothing on how to delete/revert thumbnails.
https://developers.google.com/youtube/v3/docs/thumbnails/set
Any pointers appreciated.