scsi: lpfc: Remove unneeded variable 'status' in lpfc_fcp_cpu_map_store()

Fixes coccicheck warning:
drivers/scsi/lpfc/lpfc_attr.c:5341:5-11: Unneeded variable: "status". Return "- EINVAL" on line 5342

Link: https://lore.kernel.org/r/20200916022859.349089-1-yebin10@huawei.comReported-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_attr.c

@@ -5338,8 +5338,7 @@ static ssize_t
 lpfc_fcp_cpu_map_store(struct device *dev, struct device_attribute *attr,
 		       const char *buf, size_t count)
 {
-	int status = -EINVAL;
-	return status;
+	return -EINVAL;
 }
 
 /*