How to delete multiple entries in Files sub-menu

I have been moving my videos/movies around on my hard drive. This has left me with several entries for them under the Files sub-menu.
It reads:

Auto-mounted drives
Add Videos

How do i get rid of the Videos(2) and (3)?
I have tried a clean library and a library update but neither worked.

Go onto the entry and click menu button for context menu and choose remove source

That did the job - Thanks