basichost: remove invalid comment

This was copied from RoutedHost.NewStream. It is only relevant for
RoutedHost

p2p/host/basic/basic_host.go

@@ -629,9 +629,6 @@ func (h *BasicHost) RemoveStreamHandler(pid protocol.ID) {
 // to create one. If ProtocolID is "", writes no header.
 // (Thread-safe)
 func (h *BasicHost) NewStream(ctx context.Context, p peer.ID, pids ...protocol.ID) (network.Stream, error) {
-	// Ensure we have a connection, with peer addresses resolved by the routing system (#207)
-	// It is not sufficient to let the underlying host connect, it will most likely not have
-	// any addresses for the peer without any prior connections.
 	// If the caller wants to prevent the host from dialing, it should use the NoDial option.
 	if nodial, _ := network.GetNoDial(ctx); !nodial {
 		err := h.Connect(ctx, peer.AddrInfo{ID: p})