Update npc.go

解决npc同时支持客户端和私密代理访问端的问题  #472
暂不支持网页配置私密代理访问端

cmd/npc/npc.go

@@ -218,7 +218,6 @@ func run() {
 		commonConfig.Client = new(file.Client)
 		commonConfig.Client.Cnf = new(file.Config)
 		go client.StartLocalServer(localServer, commonConfig)
-		return
 	}
 	env := common.GetEnvMap()
 	if *serverAddr == "" {