USB: serial: iuu_phoenix: drop bogus initial cflag

Drop bogus TIOCM_CTS, which is not a cflag, from the initial terminal
settings.

Note that the corresponding bit is already set by CS8.
Signed-off-by: Johan Hovold <johan@kernel.org>

drivers/usb/serial/iuu_phoenix.c

@@ -943,8 +943,7 @@ static void iuu_close(struct usb_serial_port *port)
 static void iuu_init_termios(struct tty_struct *tty)
 {
 	tty->termios = tty_std_termios;
-	tty->termios.c_cflag = CLOCAL | CREAD | CS8 | B9600
-				| TIOCM_CTS | CSTOPB | PARENB;
+	tty->termios.c_cflag = CLOCAL | CREAD | CS8 | B9600 | CSTOPB | PARENB;
 	tty->termios.c_ispeed = 9600;
 	tty->termios.c_ospeed = 9600;
 	tty->termios.c_lflag = 0;