"validator.c", line 343: remark(1552): variable "rdataset" was set but never

          used

Removed rdataset from function.

lib/dns/validator.c

@@ -340,13 +340,11 @@ static void
 nullkeyvalidated(isc_task_t *task, isc_event_t *event) {
 	dns_validatorevent_t *devent;
 	dns_validator_t *val;
-	dns_rdataset_t *rdataset;
 	isc_result_t result;
 
 	UNUSED(task);
 	INSIST(event->ev_type == DNS_EVENT_VALIDATORDONE);
 	devent = (dns_validatorevent_t *)event;
-	rdataset = devent->rdataset;
 	val = devent->ev_arg;
 
 	validator_log(val, ISC_LOG_DEBUG(3), "in nullkeyvalidated");