custom-tab-bar: 移除无用代码

pages/template/custom-tab-bar/custom-tab-bar.uvue

@@ -7,7 +7,8 @@
     <view ref="tabbar" class="tab-bar">
       <view class="tab-item" @click="onTabClick(0)">
         <view ref="tab-item1" class="tab-item-content">
-          <text v-if="displayArrow" class="tab-item-icon tab-item-arrow uni-icon" :class="selectedIndex==0 ? 'tab-item-text-active' : ''">
+          <text v-if="displayArrow" class="tab-item-icon tab-item-arrow uni-icon"
+            :class="selectedIndex==0 ? 'tab-item-text-active' : ''">
             {{'\ue6bd'}}
           </text>
           <text v-if="!displayArrow" class="tab-item-icon uni-icon"
@@ -84,10 +85,7 @@
         }
       },
       onTabPageEvent(top : number) {
-        // const tabItem1 = this.$refs["tab-item1"] as Element
         this.displayArrow = top > this.$tabViewHeight
-        // const angle = displayIcon ? 180 : 0
-        // tabItem1.style.setProperty('transform', `rotate(${angle}deg)`)
       },
       setSelectedIndex(index : number) {
         if (this.selectedIndex === index) {