scsi: lpfc: Remove the unneeded result variable

Return the value from lpfc_sli4_issue_wqe() directly instead of storing it
in another redundant variable.

Link: https://lore.kernel.org/r/20220824075017.221244-1-ye.xingchen@zte.com.cnReported-by: Zeal Robot <zealci@zte.com.cn>
Reviewed-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: ye xingchen <ye.xingchen@zte.com.cn>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/lpfc/lpfc_sli.c

@@ -10504,12 +10504,10 @@ static int
 __lpfc_sli_issue_fcp_io_s4(struct lpfc_hba *phba, uint32_t ring_number,
 			   struct lpfc_iocbq *piocb, uint32_t flag)
 {
-	int rc;
 	struct lpfc_io_buf *lpfc_cmd = piocb->io_buf;
 
 	lpfc_prep_embed_io(phba, lpfc_cmd);
-	rc = lpfc_sli4_issue_wqe(phba, lpfc_cmd->hdwq, piocb);
-	return rc;
+	return lpfc_sli4_issue_wqe(phba, lpfc_cmd->hdwq, piocb);
 }
 
 void