Instead of separate checking of DNS required packages, we need just check if IPA DNS package is installed. https://fedorahosted.org/freeipa/ticket/4058 Reviewed-By: Martin Babinsky <mbabinsk@redhat.com> Reviewed-By: Petr Spacek <pspacek@redhat.com> Reviewed-By: Tomas Babej <tbabej@redhat.com>