fix(frontend): 移除食谱页未使用的 iconCls 死代码

cfc-frontend/pages/diet/recommendation.vue

@@ -163,7 +163,6 @@ export default {
               name: config.name,
               icon: config.icon,
               type: meal.type,
-              iconCls: 'meal-icon-' + meal.type,
               participants: meal.participants || 1,
               dishes: meal.dishes || []
             })