To uninstall banshee just follow these instructions.
sudo apt-get remove banshee
This will remove just the banshee package itself.
sudo apt-get remove --auto-remove banshee
This will remove the banshee package and any other dependant packages which are no longer needed.
If you also want to delete your local/config files for banshee then this will work.
sudo apt-get purge banshee
Or similarly, like this banshee
sudo apt-get purge --auto-remove banshee
|Maintainer||Debian CLI Applications Team <email@example.com>|
|Description||Media Management and Playback application desktop, allowing users to import audio from CDs, search their library, create playlists of selections of their library, sync music to/from iPods and other media devices, play and manage video files and burn selections to a CD.|