ibmvfc: remove unused tag variable

Reported-by: NStephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com
Reviewed-by: NHannes Reinecke <hare@suse.de>
Acked-by: NBrian King <brking@linux.vnet.ibm.com>

drivers/scsi/ibmvscsi/ibmvfc.c

@@ -1615,7 +1615,6 @@ static int ibmvfc_queuecommand_lck(struct scsi_cmnd *cmnd,
 	struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device));
 	struct ibmvfc_cmd *vfc_cmd;
 	struct ibmvfc_event *evt;
-	u8 tag[2];
 	int rc;
 
 	if (unlikely((rc = fc_remote_port_chkready(rport))) ||