mei: pxp: Keep a const qualifier when calling mei_cldev_send()

The API has been fixed in commit 0912ef48 ("mei: constify passed
buffers and structures"), so there is no more need to drop the const
qualifier and the comment can be removed as-well.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/23c078181575e65ff660f993bc6eb38753b3d5e7.1689971167.git.christophe.jaillet@wanadoo.frSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/misc/mei/pxp/mei_pxp.c

@@ -40,8 +40,7 @@ mei_pxp_send_message(struct device *dev, const void *message, size_t size)
 
 	cldev = to_mei_cl_device(dev);
 
-	/* temporary drop const qualifier till the API is fixed */
-	byte = mei_cldev_send(cldev, (u8 *)message, size);
+	byte = mei_cldev_send(cldev, message, size);
 	if (byte < 0) {
 		dev_dbg(dev, "mei_cldev_send failed. %zd\n", byte);
 		return byte;