To uninstall resolvconf just follow these instructions.
sudo apt-get remove resolvconf
This will remove just the resolvconf package itself.
sudo apt-get remove --auto-remove resolvconf
This will remove the resolvconf package and any other dependant packages which are no longer needed.
If you also want to delete your local/config files for resolvconf then this will work.
sudo apt-get purge resolvconf
Or similarly, like this resolvconf
sudo apt-get purge --auto-remove resolvconf
|Maintainer||resolvconf maintainers <email@example.com>|
|Description||name server information handler|