元素删除，修改总量

src/views/manager/wbsinfo/edit.vue

@@ -1968,6 +1968,7 @@ export default {
           removeElement(row.id, this.curEleTable.initTableName, row.ekey).then(() => {
             list.splice(index, 1);
           })
+          this.curEleTable.elementTotal --;
         })
       } else {
         list.splice(index, 1);