$ sudo apt-get remove gmorgan 

Uninstall gmorgan including dependent package

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

$ sudo apt-get remove --auto-remove gmorgan 

Use Purging gmorgan

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

$ sudo apt-get purge gmorgan 

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 gmorgan 

See Also,