To uninstall xfaces just follow these instructions.
sudo apt-get remove xfaces
This will remove just the xfaces package itself.
sudo apt-get remove --auto-remove xfaces
This will remove the xfaces package and any other dependant packages which are no longer needed.
If you also want to delete your local/config files for xfaces then this will work.
sudo apt-get purge xfaces
Or similarly, like this xfaces
sudo apt-get purge --auto-remove xfaces
|Maintainer||Hakan Ardo <firstname.lastname@example.org>|
|Description||Displays an image for each piece of mail in your mailbox piece of mail in your mail box. This lets you know at a glance who you have mail from. XFaces starts out (when you have no mail) looking like a color xbiff. As you receive mail XFaces becomes a column of mail images. Some of XFaces features:|