fix(测试计划): 报告导出后性能测试用例不显示

--bug=1011685 --user=李玉号 【测试跟踪】-测试计划报告 导出后 性能测试用例不显示
https://www.tapd.cn/55049933/s/1126100

frontend/src/business/components/track/plan/view/comonents/report/detail/component/LoadFailureResult.vue

@@ -11,7 +11,7 @@
             :label="$t('commons.id')"
             show-overflow-tooltip>
           <template v-slot:default="{row}">
-            {{ isCustomNum ? row.customNum : row.num }}
+            {{ row.isCustomNum ? row.customNum : row.num }}
           </template>
         </el-table-column>
         <el-table-column
@@ -94,11 +94,6 @@ export default {
       }
     }
   },
-  computed: {
-    isCustomNum() {
-      return this.$store.state.currentProjectIsCustomNum;
-    },
-  },
   methods: {
     getFailureTestCase() {
       if (this.isTemplate || this.isDb) {