To uninstall liblwres90 just follow these instructions.
sudo apt-get remove liblwres90
This will remove just the liblwres90 package itself.
sudo apt-get remove --auto-remove liblwres90
This will remove the liblwres90 package and any other dependant packages which are no longer needed.
If you also want to delete your local/config files for liblwres90 then this will work.
sudo apt-get purge liblwres90
Or similarly, like this liblwres90
sudo apt-get purge --auto-remove liblwres90
|Maintainer||LaMont Jones <email@example.com>|
|Description||Lightweight Resolver Library used by BIND|