Remove unused function

tcp/mux.go

@@ -191,20 +191,6 @@ func (ln *listener) Close() error { return nil }
 // Addr always returns nil
 func (ln *listener) Addr() net.Addr { return nil }
 
-// Dial connects to a remote mux listener with a given header byte.
-func Dial(network, address string, header byte) (net.Conn, error) {
-	conn, err := net.Dial(network, address)
-	if err != nil {
-		return nil, err
-	}
-
-	if _, err := conn.Write([]byte{header}); err != nil {
-		return nil, fmt.Errorf("write mux header: %s", err)
-	}
-
-	return conn, nil
-}
-
 // NewTLSListener returns a net listener which encrypts the traffic using TLS.
 func NewTLSListener(ln net.Listener, certFile, keyFile string) (net.Listener, error) {
 	config, err := createTLSConfig(certFile, keyFile)