fix(SCRM-7383): 优惠金额展示优化

src/pages/parkingFeeV2/mixins/parkingFeeDetail.js

@@ -294,10 +294,10 @@ export default {
         parkDiscount = this.orderDetail.parkingRecord?.parkDiscount
       }
       try {
-        let actualUsedDiscount = discountInfo?.usingTotalDiscount ||  0;
-        if(parkDiscount && discountInfo?.usingTotalDiscount) {
-          actualUsedDiscount  = discountInfo?.usingTotalDiscount - parkDiscount || 0
-        }
+        const actualUsedDiscount = discountInfo?.usingTotalDiscount ||  0;
+        // if(parkDiscount && discountInfo?.usingTotalDiscount) {
+        //   actualUsedDiscount  = discountInfo?.usingTotalDiscount - parkDiscount || 0
+        // }
         const params = {
           // vehicleNo: '', // 车牌号
           // points