Remove redundant dsinstance restart
Removed a redundant restart in server install which was there
only so other methods of dsinstance would not fail as they would
use the wrong connection mentioned above.
https://fedorahosted.org/freeipa/ticket/6392
Reviewed-By: Martin Babinsky <mbabinsk@redhat.com>
Reviewed-By: Jan Cholasta <jcholast@redhat.com>