chore: cleanup unneed patch

tunnel/statistic/patch.go

@@ -1,25 +1,5 @@
 package statistic
 
-import (
-	"net"
-)
-
 func (m *Manager) Total() (up, down int64) {
 	return m.uploadTotal.Load(), m.downloadTotal.Load()
 }
-
-func (tt *tcpTracker) RawConn() (net.Conn, bool) {
-	if tt.Chain.Last() == "DIRECT" {
-		return tt.Conn, true
-	}
-
-	return nil, false
-}
-
-func (ut *udpTracker) RawPacketConn() (net.PacketConn, bool) {
-	if ut.Chain.Last() == "DIRECT" {
-		return ut.PacketConn, true
-	}
-
-	return nil, false
-}