You can uninstall or removes an installed fancontrol-modules-3.16.0-4-po package itself from Debian 8 (Jessie) through the terminal,
$ sudo apt-get remove fancontrol-modules-3.16.0-4-po
If you would like to remove fancontrol-modules-3.16.0-4-po and it's dependent packages which are no longer needed from Ubuntu,
$ sudo apt-get remove --auto-remove fancontrol-modules-3.16.0-4-po
If you use with purge options to fancontrol-modules-3.16.0-4-po package all the configuration and dependent packages will be removed.
$ sudo apt-get purge fancontrol-modules-3.16.0-4-po
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 fancontrol-modules-3.16.0-4-po