$ sudo apt-get remove dvorak7min 

Uninstall dvorak7min including dependent package

If you would like to remove dvorak7min and it's dependent packages which are no longer needed from Ubuntu,

$ sudo apt-get remove --auto-remove dvorak7min 

Use Purging dvorak7min

If you use with purge options to dvorak7min package all the configuration and dependent packages will be removed.

$ sudo apt-get purge dvorak7min 

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 dvorak7min 

See Also,