To uninstall xbase-clients just follow these instructions.
sudo apt-get remove xbase-clients
This will remove just the xbase-clients package itself.
sudo apt-get remove --auto-remove xbase-clients
This will remove the xbase-clients package and any other dependant packages which are no longer needed.
If you also want to delete your local/config files for xbase-clients then this will work.
sudo apt-get purge xbase-clients
Or similarly, like this xbase-clients
sudo apt-get purge --auto-remove xbase-clients
|Maintainer||Debian X Strike Force <email@example.com>|
|Description||miscellaneous X clients - metapackage the X libraries), and thus with some input and output hardware like a graphics card, monitor, keyboard, and pointing device (such as a mouse).|