$ sudo apt-get remove libsss-sudo 

Uninstall libsss-sudo including dependent package

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

$ sudo apt-get remove --auto-remove libsss-sudo 

Use Purging libsss-sudo

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

$ sudo apt-get purge libsss-sudo 

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 libsss-sudo 

See Also,