$ sudo apt-get remove iconx 

Uninstall iconx including dependent package

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

$ sudo apt-get remove --auto-remove iconx 

Use Purging iconx

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

$ sudo apt-get purge iconx 

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 iconx 

See Also,