To uninstall xflip just follow these instructions.
sudo apt-get remove xflip
This will remove just the xflip package itself.
sudo apt-get remove --auto-remove xflip
This will remove the xflip package and any other dependant packages which are no longer needed.
If you also want to delete your local/config files for xflip then this will work.
sudo apt-get purge xflip
Or similarly, like this xflip
sudo apt-get purge --auto-remove xflip
|Maintainer||Debian QA Group <firstname.lastname@example.org>|
|Description||programs to mirror-image or melt your display or horizontal axis or melt away the graphics on your display. Both commands, named xflip and meltdown, have a -planes option to independently act on individual bit planes. This version now comes with a new -oblic option which flips horizontally and vertically simultaneously.|