You can uninstall or removes an installed libgck-1-0 package itself from Debian 8 (Jessie) through the terminal,
$ sudo apt-get remove libgck-1-0
If you would like to remove libgck-1-0 and it's dependent packages which are no longer needed from Ubuntu,
$ sudo apt-get remove --auto-remove libgck-1-0
If you use with purge options to libgck-1-0 package all the configuration and dependent packages will be removed.
$ sudo apt-get purge libgck-1-0
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 libgck-1-0