Remove unused codes

relay/client/dialer/quic/conn.go

@@ -1,52 +0,0 @@
-package quic
-
-import (
-	"net"
-
-	"github.com/quic-go/quic-go"
-	log "github.com/sirupsen/logrus"
-)
-
-type Conn struct {
-	quic.Stream
-	qConn quic.Connection
-}
-
-func NewConn(stream quic.Stream, qConn quic.Connection) net.Conn {
-	return &Conn{
-		Stream: stream,
-		qConn:  qConn,
-	}
-}
-
-func (q *Conn) Write(b []byte) (n int, err error) {
-	log.Debugf("writing: %d, %x\n", len(b), b)
-	n, err = q.Stream.Write(b)
-	if n != len(b) {
-		log.Errorf("failed to write out the full message")
-	}
-	return
-}
-
-func (q *Conn) Close() error {
-	err := q.Stream.Close()
-	if err != nil {
-		log.Errorf("failed to close stream: %s", err)
-		return err
-	}
-	err = q.qConn.CloseWithError(0, "")
-	if err != nil {
-		log.Errorf("failed to close connection: %s", err)
-		return err
-
-	}
-	return err
-}
-
-func (c *Conn) LocalAddr() net.Addr {
-	return c.qConn.LocalAddr()
-}
-
-func (c *Conn) RemoteAddr() net.Addr {
-	return c.qConn.RemoteAddr()
-}

relay/client/dialer/quic/quic.go

@@ -1,32 +0,0 @@
-package quic
-
-import (
-	"context"
-	"crypto/tls"
-	"net"
-
-	"github.com/quic-go/quic-go"
-	log "github.com/sirupsen/logrus"
-)
-
-func Dial(address string) (net.Conn, error) {
-	tlsConf := &tls.Config{
-		InsecureSkipVerify: true,
-		NextProtos:         []string{"quic-echo-example"},
-	}
-	qConn, err := quic.DialAddr(context.Background(), address, tlsConf, &quic.Config{
-		EnableDatagrams: true,
-	})
-	if err != nil {
-		log.Errorf("dial quic address %s failed: %s", address, err)
-		return nil, err
-	}
-
-	stream, err := qConn.OpenStreamSync(context.Background())
-	if err != nil {
-		return nil, err
-	}
-
-	conn := NewConn(stream, qConn)
-	return conn, nil
-}

relay/client/dialer/tcp/tcp.go

@@ -1,7 +0,0 @@
-package tcp
-
-import "net"
-
-func Dial(address string) (net.Conn, error) {
-	return net.Dial("tcp", address)
-}

relay/client/dialer/udp/udp.go

@@ -1,14 +0,0 @@
-package udp
-
-import (
-	"net"
-)
-
-func Dial(address string) (net.Conn, error) {
-	udpAddr, err := net.ResolveUDPAddr("udp", address)
-	if err != nil {
-		return nil, err
-	}
-
-	return net.DialUDP("udp", nil, udpAddr)
-}