chore: code cleanup

transport/vless/conn.go

@@ -123,9 +123,6 @@ func (vc *Conn) recvResponse() error {
 }
 
 func (vc *Conn) Upstream() any {
-	if wrapper, ok := vc.ExtendedConn.(*N.ExtendedConnWrapper); ok {
-		return wrapper.Conn
-	}
 	return vc.ExtendedConn
 }
 

transport/vmess/websocket.go

@@ -17,7 +17,6 @@ import (
 	"strings"
 	"sync"
 	"time"
-	_ "unsafe"
 
 	"github.com/Dreamacro/clash/common/buf"
 	N "github.com/Dreamacro/clash/common/net"
@@ -25,9 +24,6 @@ import (
 	"github.com/gorilla/websocket"
 )
 
-//go:linkname maskBytes github.com/gorilla/websocket.maskBytes
-func maskBytes(key [4]byte, pos int, b []byte) int
-
 type websocketConn struct {
 	conn       *websocket.Conn
 	reader     io.Reader