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

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

$ sudo apt-get remove cinnamon-session

Uninstall cinnamon-session including dependent package

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

$ sudo apt-get remove --auto-remove cinnamon-session

Use Purging cinnamon-session

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

$ sudo apt-get purge cinnamon-session

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 cinnamon-session