Remove unnecessary infos for folder removal and let remove folders with subfolders

Hi,

Thanks for contacting us here about this extension.

Please let me delete complete folder under media library without the useless info to first delete it's including files and sub folders!

Yes, you should enable Remove a folder with its media option at Settings > WP Media Folder > Files & Folders tab.
Now you can delete the folders and its sub without alert popup!

Hope it helps!
Cheers,