You can uninstall or removes an installed bve-route-cross-city-south package itself from Ubuntu 16.10 (Yakkety Yak) through the terminal,
$ sudo apt-get remove bve-route-cross-city-south
If you would like to remove bve-route-cross-city-south and it's dependent packages which are no longer needed from Ubuntu,
$ sudo apt-get remove --auto-remove bve-route-cross-city-south
If you use with purge options to bve-route-cross-city-south package all the configuration and dependent packages will be removed.
$ sudo apt-get purge bve-route-cross-city-south
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 bve-route-cross-city-south