Fix lint errors

Signed-off-by: Tomasz Pietrek <tomasz@nats.io>

server/consumer.go

@@ -3076,7 +3076,7 @@ func (o *consumer) getNextMsg() (*jsPubMsg, uint64, error) {
 	}
 	// Process redelivered messages before looking at possibly "skip list" (deliver last per subject)
 	if o.hasRedeliveries() {
-		seq, dc := o.sseq, uint64(1)
+		var seq, dc uint64
 		for seq = o.getNextToRedeliver(); seq > 0; seq = o.getNextToRedeliver() {
 			dc = o.incDeliveryCount(seq)
 			if o.maxdc > 0 && dc > o.maxdc {
@@ -3137,8 +3137,6 @@ func (o *consumer) getNextMsg() (*jsPubMsg, uint64, error) {
 		if value.pmsg == nil {
 			pmsg := getJSPubMsgFromPool()
 			sm, sseq, err := o.mset.store.LoadNextMsg(value.subject, value.hasWildcard, value.sequence, &pmsg.StoreMsg)
-			if err != nil {
-			}
 			o.msseq[i].err = err
 
 			if sm != nil {