skd: Remove a set-but-not-used variable from struct skd_device

This patch does not change any functionality.
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

drivers/block/skd_main.c

@@ -271,7 +271,6 @@ struct skd_device {
 	int gendisk_on;
 	int sync_done;
 
-	atomic_t device_count;
 	u32 devno;
 	u32 major;
 	char name[32];
@@ -4313,8 +4312,6 @@ static struct skd_device *skd_construct(struct pci_dev *pdev)
 	skdev->sgs_per_request = skd_sgs_per_request;
 	skdev->dbg_level = skd_dbg_level;
 
-	atomic_set(&skdev->device_count, 0);
-
 	spin_lock_init(&skdev->lock);
 
 	INIT_WORK(&skdev->completion_worker, skd_completion_worker);