Add a button to remove videos watched with more than X percent from watch later playlist.
yt-playlists-delete-enhancer 已被刪除，原因是：檢舉#14340。
申訴提交者：
Hi there !
In my latest version 1.5.7 I removed the modification optimization from the bundling phase. Everything should be in order now.
由於此申訴，一位管理員恢復了這個被刪除的腳本。
