cosmetic: remove outdated comment

router/routes.go

@@ -233,10 +233,6 @@ func (routes *Routes) calculateBroadcast(establishedAndSymmetric bool) map[PeerN
 				if _, found := reached[remoteName]; found {
 					continue
 				}
-				// conn.Remote() cannot by ourself. Modifying
-				// peer.connections requires a write lock on Peers,
-				// and since we are holding a read lock (due to the
-				// ForEach), access without locking the peer is safe.
 				if remoteConn, found := conn.Remote().connections[routes.ourself.Name]; !establishedAndSymmetric || (found && remoteConn.Established()) {
 					hops = append(hops, remoteName)
 				}