USB: pl2303: remove redundant line-request call

Remove redundant get_line_request (the read back settings are never
used).
Signed-off-by: NJohan Hovold <jhovold@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/serial/pl2303.c

@@ -514,9 +514,6 @@ static void pl2303_set_termios(struct tty_struct *tty,
 		spin_unlock_irqrestore(&priv->lock, flags);
 	}
 
-	memset(buf, 0, 7);
-	pl2303_get_line_request(port, buf);
-
 	if (C_CRTSCTS(tty)) {
 		if (spriv->type == HX)
 			pl2303_vendor_write(serial, 0x0, 0x61);