Fix wireguard mutex

transport/wireguard/client_bind.go

@@ -100,14 +100,10 @@ func (c *ClientBind) receive(b []byte) (n int, ep conn.Endpoint, err error) {
 }
 
 func (c *ClientBind) Reset() {
-	c.connAccess.Lock()
-	defer c.connAccess.Unlock()
 	common.Close(common.PtrOrNil(c.conn))
 }
 
 func (c *ClientBind) Close() error {
-	c.connAccess.Lock()
-	defer c.connAccess.Unlock()
 	common.Close(common.PtrOrNil(c.conn))
 	if c.done == nil {
 		c.done = make(chan struct{})