use the new quic-go API

The tls.Config was removed from the quic.Config in
https://github.com/lucas-clemente/quic-go/pull/713.

dialer.go

@@ -25,13 +25,12 @@ func newDialer(transport tpt.Transport) (*dialer, error) {
 
 func (d *dialer) Dial(raddr ma.Multiaddr) (tpt.Conn, error) {
 	// TODO: check that raddr is a QUIC address
-	tlsConf := &tls.Config{InsecureSkipVerify: true}
 	_, host, err := manet.DialArgs(raddr)
 	if err != nil {
 		return nil, err
 	}
 
-	qsess, err := quic.DialAddr(host, &quic.Config{TLSConfig: tlsConf})
+	qsess, err := quic.DialAddr(host, &tls.Config{InsecureSkipVerify: true}, nil)
 	if err != nil {
 		return nil, err
 	}

listener.go

@@ -20,17 +20,13 @@ type listener struct {
 var _ tpt.Listener = &listener{}
 
 func newListener(laddr ma.Multiaddr, t tpt.Transport) (*listener, error) {
-	qconf := &quic.Config{
-		// we need to provide a certificate here
-		// use the demo certificate from quic-go
-		TLSConfig: testdata.GetTLSConfig(),
-	}
-
 	_, host, err := manet.DialArgs(laddr)
 	if err != nil {
 		return nil, err
 	}
-	qln, err := quic.ListenAddr(host, qconf)
+	// we need to provide a certificate here
+	// use the demo certificate from quic-go
+	qln, err := quic.ListenAddr(host, testdata.GetTLSConfig(), nil)
 	if err != nil {
 		return nil, err
 	}