To uninstall xscreensaver-screensaver-bsod just follow these instructions.
sudo apt-get remove xscreensaver-screensaver-bsod
This will remove just the xscreensaver-screensaver-bsod package itself.
sudo apt-get remove --auto-remove xscreensaver-screensaver-bsod
This will remove the xscreensaver-screensaver-bsod package and any other dependant packages which are no longer needed.
If you also want to delete your local/config files for xscreensaver-screensaver-bsod then this will work.
sudo apt-get purge xscreensaver-screensaver-bsod
Or similarly, like this xscreensaver-screensaver-bsod
sudo apt-get purge --auto-remove xscreensaver-screensaver-bsod
|Maintainer||Tormod Volden <email@example.com>|
|Home page||http://www.jwz.org/xscreensaver/ uitoolkit::gtk, x11::screensaver|
|Description||BSOD screen saver module from XScreenSaver from several OSes including BSD, Windows, Linux, Solaris, Apple and much more.|