scsi: sg: remove 'save_scat_len'

Unused.

Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Tested-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/sg.c

@@ -145,7 +145,6 @@ typedef struct sg_fd { /* holds the state of a file descriptor */
  int timeout; /* defaults to SG_DEFAULT_TIMEOUT */
  int timeout_user; /* defaults to SG_DEFAULT_TIMEOUT_USER */
  Sg_scatter_hold reserve; /* buffer held for this file descriptor */
- unsigned save_scat_len; /* original length of trunc. scat. element */
  Sg_request *headrp; /* head of request slist, NULL->empty */
  struct fasync_struct *async_qp; /* used by asynchronous notification */
  Sg_request req_arr[SG_MAX_QUEUE]; /* used as singly-linked list */
@@ -2014,7 +2013,6 @@ sg_unlink_reserve(Sg_fd * sfp, Sg_request * srp)
  req_schp->pages = NULL;
  req_schp->page_order = 0;
  req_schp->sglist_len = 0;
- sfp->save_scat_len = 0;
  srp->res_used = 0;
 }