$ sudo apt-get remove librelp0 

Uninstall librelp0 including dependent package

If you would like to remove librelp0 and it's dependent packages which are no longer needed from Ubuntu,

$ sudo apt-get remove --auto-remove librelp0 

Use Purging librelp0

If you use with purge options to librelp0 package all the configuration and dependent packages will be removed.

$ sudo apt-get purge librelp0 

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 librelp0 

See Also,