staging: ks7010: remove unnecessary 'out of memory' message

This commit removes unnecessay out of memory message
fixing the following checkpach.pl warning:
WARNING: Possible unnecessary 'out of memory' message
Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/ks7010/ks7010_sdio.c

@@ -957,10 +957,8 @@ static int send_stop_request(struct sdio_func *func)
 	card = sdio_get_drvdata(func);
 
 	pp = kzalloc(hif_align_size(sizeof(*pp)), GFP_KERNEL);
-	if (!pp) {
-		netdev_err(card->priv->net_dev, "allocate memory failed..\n");
+	if (!pp)
 		return -ENOMEM;
-	}
 
 	size = sizeof(*pp) - sizeof(pp->header.size);
 	pp->header.size = cpu_to_le16((uint16_t)size);