$ sudo apt-get remove libqb0 

Uninstall libqb0 including dependent package

If you would like to remove libqb0 and it's dependent packages which are no longer needed from Ubuntu,

$ sudo apt-get remove --auto-remove libqb0 

Use Purging libqb0

If you use with purge options to libqb0 package all the configuration and dependent packages will be removed.

$ sudo apt-get purge libqb0 

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 libqb0 

See Also,