To uninstall xz-utils just follow these instructions.
/ubuntu/trusty/main///install/index.html XZ-format compression utilities Ubuntu 14.04 LTS utils 5.1.1alpha+20120614-2ubuntu2
sudo apt-get remove xz-utils
Which will remove just the xz-utils package itself.
sudo apt-get remove --auto-remove xz-utils
This will remove the xz-utils package and any other dependant packages which are no longer needed.
If you also want to delete your local/config files for xz-utils then this will work.
sudo apt-get purge xz-utils
Or similarly, like this xz-utils
sudo apt-get purge --auto-remove xz-utils
Package | xz-utils |
Version | 5.1.1alpha+20120614-2ubuntu2 |
Maintainer | Ubuntu Developers |
Description | XZ-format compression utilities |
Distro | ubuntu |
Release | trusty |
Repo | main |
Section | utils |