HID: intel-ish-hid: ishtp: remove variable rb_count

The variable rb_count is being incremented but it
is never referenced, it is redundant and can be removed.
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

drivers/hid/intel-ish-hid/ishtp/client.c

@@ -841,7 +841,6 @@ void recv_ishtp_cl_msg(struct ishtp_device *dev,
 	unsigned char *buffer = NULL;
 	struct ishtp_cl_rb *complete_rb = NULL;
 	unsigned long	flags;
-	int	rb_count;
 
 	if (ishtp_hdr->reserved) {
 		dev_err(dev->devc, "corrupted message header.\n");
@@ -855,9 +854,7 @@ void recv_ishtp_cl_msg(struct ishtp_device *dev,
 	}
 
 	spin_lock_irqsave(&dev->read_list_spinlock, flags);
-	rb_count = -1;
 	list_for_each_entry(rb, &dev->read_list.list, list) {
-		++rb_count;
 		cl = rb->cl;
 		if (!cl || !(cl->host_client_id == ishtp_hdr->host_addr &&
 				cl->fw_client_id == ishtp_hdr->fw_addr) ||