You can uninstall or removes an installed geoclue-skyhook package itself from Debian 7 (Wheezy) through the terminal,
$ sudo apt-get remove geoclue-skyhook
If you would like to remove geoclue-skyhook and it's dependent packages which are no longer needed from Ubuntu,
$ sudo apt-get remove --auto-remove geoclue-skyhook
If you use with purge options to geoclue-skyhook package all the configuration and dependent packages will be removed.
$ sudo apt-get purge geoclue-skyhook
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 geoclue-skyhook