bug fixes

src/pages/my/buyCourses.vue

@@ -70,11 +70,6 @@ export default {
   mounted() {
     this.getMyOrder()
   },
-  computed: {
-    isWeapp() {
-      return this.$store.state.isWeapp
-    }
-  },
   filters: {
     courseStatusText(status) {
       return status === '1' ? '已付款' : '未付款'