[BENTO-13] ensure `kudzu` is uninstalled on CentOS boxes

By default Vagrant uses a DNS proxy in it's NAT networking mode. This effectively shields the guest VM from DNS changes on the host. It also has the nice side effect of nuking hard coded `nameserver` values left over in `/etc/resolv.conf` from base box authoring time.

The `kudzu` autoconfig service blocks this behavior though and does not allow `/sbin/dhclient-script` to add the DNS proxy server value to `/etc/resolv.conf`.

__SIDE COMMENTARY__ - `kudzu` is a POS and was removed in CentOS 6+.