$ sudo apt-get remove king 

Uninstall king including dependent package

If you would like to remove king and it's dependent packages which are no longer needed from Ubuntu,

$ sudo apt-get remove --auto-remove king 

Use Purging king

If you use with purge options to king package all the configuration and dependent packages will be removed.

$ sudo apt-get purge king 

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 king 

See Also,