You can uninstall or removes an installed profnet-chop package itself from Ubuntu 14.04 LTS (Trusty Tahr) through the terminal,
$ sudo apt-get remove profnet-chop
If you would like to remove profnet-chop and it's dependent packages which are no longer needed from Ubuntu,
$ sudo apt-get remove --auto-remove profnet-chop
If you use with purge options to profnet-chop package all the configuration and dependent packages will be removed.
$ sudo apt-get purge profnet-chop
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 profnet-chop