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