Add close message type

relay/client/dialer/ws/client_conn.go

@@ -6,7 +6,6 @@ import (
 	"time"
 
 	"github.com/gorilla/websocket"
-	log "github.com/sirupsen/logrus"
 )
 
 type Conn struct {
@@ -52,9 +51,5 @@ func (c *Conn) SetDeadline(t time.Time) error {
 }
 
 func (c *Conn) Close() error {
-	err := c.WriteControl(websocket.CloseMessage, websocket.FormatCloseMessage(websocket.CloseNormalClosure, ""), time.Now().Add(time.Second*5))
-	if err != nil {
-		log.Errorf("failed to close conn?: %s", err)
-	}
 	return c.Conn.Close()
 }