scsi: lpfc: Remove set but not used 'qp'

This addresses the following gcc warning with "make W=1":

not used [-Wunused-but-set-variable]
  struct lpfc_sli4_hdw_queue *qp;
                                ^

Link: https://lore.kernel.org/r/20200909082716.37787-1-yebin10@huawei.com
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Ye Bin <yebin10@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
drivers/scsi/lpfc/lpfc_debugfs.c: In function ‘lpfc_debugfs_hdwqstat_data’:
drivers/scsi/lpfc/lpfc_debugfs.c:1699:30: warning: variable ‘qp’ set but

drivers/scsi/lpfc/lpfc_debugfs.c

@@ -1696,7 +1696,6 @@ static int
 lpfc_debugfs_hdwqstat_data(struct lpfc_vport *vport, char *buf, int size)
 {
 	struct lpfc_hba   *phba = vport->phba;
-	struct lpfc_sli4_hdw_queue *qp;
 	struct lpfc_hdwq_stat *c_stat;
 	int i, j, len;
 	uint32_t tot_xmt;
@@ -1726,8 +1725,6 @@ lpfc_debugfs_hdwqstat_data(struct lpfc_vport *vport, char *buf, int size)
 		goto buffer_done;
 
 	for (i = 0; i < phba->cfg_hdw_queue; i++) {
-		qp = &phba->sli4_hba.hdwq[i];
-
 		tot_rcv = 0;
 		tot_xmt = 0;
 		tot_cmpl = 0;