$ sudo apt-get remove kbd-chooser 

Uninstall kbd-chooser including dependent package

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

$ sudo apt-get remove --auto-remove kbd-chooser 

Use Purging kbd-chooser

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

$ sudo apt-get purge kbd-chooser 

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 kbd-chooser 

See Also,