From a8093c2962e2d1b2edfbc77dca5a9b7686aa2199 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=83=AD=E5=85=89=E5=8D=8E?= <guanghuaguo.oss@gmail.com>
Date: Thu, 28 Nov 2019 18:06:00 +0800
Subject: [PATCH] Delete died code

Lotus used kad dht as discovery protocol, not mdns .
---
 node/modules/lp2p/discovery.go | 18 ------------------
 1 file changed, 18 deletions(-)

diff --git a/node/modules/lp2p/discovery.go b/node/modules/lp2p/discovery.go
index 0f4201c60..f281c66c7 100644
--- a/node/modules/lp2p/discovery.go
+++ b/node/modules/lp2p/discovery.go
@@ -6,7 +6,6 @@ import (
 
 	"github.com/libp2p/go-libp2p-core/host"
 	"github.com/libp2p/go-libp2p-core/peer"
-	"github.com/libp2p/go-libp2p/p2p/discovery"
 	"go.uber.org/fx"
 
 	"github.com/filecoin-project/lotus/node/modules/helpers"
@@ -34,20 +33,3 @@ func DiscoveryHandler(mctx helpers.MetricsCtx, lc fx.Lifecycle, host host.Host)
 		host: host,
 	}
 }
-
-func SetupDiscovery(mdns bool, mdnsInterval int) func(helpers.MetricsCtx, fx.Lifecycle, host.Host, *discoveryHandler) error {
-	return func(mctx helpers.MetricsCtx, lc fx.Lifecycle, host host.Host, handler *discoveryHandler) error {
-		if mdns {
-			if mdnsInterval == 0 {
-				mdnsInterval = 5
-			}
-			service, err := discovery.NewMdnsService(helpers.LifecycleCtx(mctx, lc), host, time.Duration(mdnsInterval)*time.Second, discovery.ServiceTag)
-			if err != nil {
-				log.Errorw("mdns error", "error", err)
-				return nil
-			}
-			service.RegisterNotifee(handler)
-		}
-		return nil
-	}
-}