Remove redundant stats in mux and bridge dispatcher

Since mux will add traffic stats in sub connection's dispatch function
Adding additional stats result to double counting

Author: yuhan6665

app/reverse/bridge.go

@@ -4,7 +4,6 @@ import (
 	"context"
 	"time"
 
-	"github.com/xtls/xray-core/app/dispatcher"
 	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/mux"
 	"github.com/xtls/xray-core/common/net"
@@ -230,8 +229,6 @@ func (w *BridgeWorker) DispatchLink(ctx context.Context, dest net.Destination, l
 		}
 		return w.Dispatcher.DispatchLink(ctx, dest, link)
 	}
-
-	link = w.Dispatcher.(*dispatcher.DefaultDispatcher).WrapLink(ctx, link)
 	w.handleInternalConn(link)
 
 	return nil

common/mux/server.go

@@ -5,7 +5,6 @@ import (
 	"io"
 	"time"
 
-	"github.com/xtls/xray-core/app/dispatcher"
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/buf"
 	"github.com/xtls/xray-core/common/errors"
@@ -64,7 +63,6 @@ func (s *Server) DispatchLink(ctx context.Context, dest net.Destination, link *t
 	if dest.Address != muxCoolAddress {
 		return s.dispatcher.DispatchLink(ctx, dest, link)
 	}
-	link = s.dispatcher.(*dispatcher.DefaultDispatcher).WrapLink(ctx, link)
 	worker, err := NewServerWorker(ctx, s.dispatcher, link)
 	if err != nil {
 		return err