[SCSI] libfc: removes unused disc_work and ex_list

Reported-by: NAlex Lyakas <alexl@mellanox.co.il>
Signed-off-by: NVasu Dev <vasu.dev@intel.com>
Signed-off-by: NRobert Love <robert.w.love@intel.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

drivers/scsi/libfc/fc_exch.c

@@ -75,7 +75,6 @@ struct fc_exch_mgr {
 	struct kref	kref;		/* exchange mgr reference count */
 	u16		min_xid;	/* min exchange ID */
 	u16		max_xid;	/* max exchange ID */
-	struct list_head	ex_list;	/* allocated exchanges list */
 	mempool_t	*ep_pool;	/* reserve ep's */
 	u16		pool_max_index;	/* max exch array index in exch pool */
 	struct fc_exch_pool *pool;	/* per cpu exch pool */

include/scsi/libfc.h

@@ -742,7 +742,6 @@ struct fc_lport {
 
 	/* Miscellaneous */
 	struct delayed_work	retry_work;
-	struct delayed_work	disc_work;
 };
 
 /*