multi: remove experimential build flag for assumechanvalid

config.go

@@ -285,7 +285,7 @@ type Config struct {
 
 	GcCanceledInvoicesOnTheFly bool `long:"gc-canceled-invoices-on-the-fly" description:"If true, we'll delete newly canceled invoices on the fly."`
 
-	Routing *routing.Conf `group:"routing" namespace:"routing"`
+	Routing *lncfg.Routing `group:"routing" namespace:"routing"`
 
 	Workers *lncfg.Workers `group:"workers" namespace:"workers"`