all: fix issues reported by honnef.co/go/simple/cmd/gosimple

p2p/discv5/database.go

@@ -269,7 +269,7 @@ func (db *nodeDB) expireNodes() error {
 			continue
 		}
 		// Skip the node if not expired yet (and not self)
-		if bytes.Compare(id[:], db.self[:]) != 0 {
+		if !bytes.Equal(id[:], db.self[:]) {
 			if seen := db.lastPong(id); seen.After(threshold) {
 				continue
 			}