折扣详情页，添加个默认排序

@@ -215,8 +215,7 @@ exports.handleSaleOptsData = (params, total, extra) => {
     let count = (extra === 'discont') ? 3 : 4;
 
     if (extra === 'default') {
-        let defaultOpt = {},
-            defaultParams = params;
+        let defaultOpt = {};
 
         defaultOpt.href = handleFilterUrl(params, {order: ''});
         defaultOpt.name = '默认';

@@ -366,9 +366,9 @@ exports.getSaleDiscountData = (params, channel) => {
     ]).then(result => {
         let finalResult = result[0];
 
-        //默认order: ''
+        // 默认order: ''
         if (_.isEmpty(params.order)) {
-            Object.assign(params, {order: ''})
+            Object.assign(params, {order: ''});
         }
 
         // 处理折扣专场标题 banner 数据
@@ -401,7 +401,9 @@ exports.getSaleDiscountData = (params, channel) => {
                 // 处理分页等筛选信息
                 if (subResult[0].code === 200) {
                     Object.assign(finalResult, {
-                        leftContent: publicHandler.handleSaleSortData(subResult[0].data.filter.group_sort, params, 'discount'),
+                        leftContent: publicHandler.handleSaleSortData(subResult[0].data.filter.group_sort,
+                            params,
+                            'discount'),
                         saleList: {
                             footPager: publicHandler.handlePagerData(subResult[0].data.total, params),
                             opts: publicHandler.handleSaleOptsData(params, subResult[0].data.total, 'default')