修复收货地址页面导航栏重复 (#409)

litemall-vue/src/views/user/module-address/index.vue

 <template>
   <div>
-    <van-nav-bar title="收货地址" left-text="返回" left-arrow @click-left="goback"/>
     <van-address-list v-model="chosenAddressId" :list="addressList" @add="onAdd" @edit="onEdit" @select="onSelect"/>
   </div>
 </template>