How to uninstall or remove kannel-extras software package from Ubuntu 16.04 LTS (Xenial Xerus)

You can uninstall or removes an installed kannel-extras package itself from Ubuntu 16.04 LTS (Xenial Xerus) through the terminal,

$ sudo apt-get remove kannel-extras

Uninstall kannel-extras including dependent package

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

$ sudo apt-get remove --auto-remove kannel-extras

Use Purging kannel-extras

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

$ sudo apt-get purge kannel-extras

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 kannel-extras