You can uninstall or removes an installed libkasten3controllers3 package itself from Ubuntu 16.04 LTS (Xenial Xerus) through the terminal,
$ sudo apt-get remove libkasten3controllers3
If you would like to remove libkasten3controllers3 and it's dependent packages which are no longer needed from Ubuntu,
$ sudo apt-get remove --auto-remove libkasten3controllers3
If you use with purge options to libkasten3controllers3 package all the configuration and dependent packages will be removed.
$ sudo apt-get purge libkasten3controllers3
If you use purge options along with auto remove, will be removed everything regarding the package, It's really useful when you want to reinstall again.
$ sudo apt-get purge --auto-remove libkasten3controllers3