取消日志页面的箭头；

src/views/UserPermissions/LogDeepMate.vue

@@ -25,7 +25,7 @@
         <el-table-column prop="module_name" label="模块名称" align="center" header-align="center"/>
         <el-table-column prop="type" label="类型" align="center" header-align="center"/>
         <el-table-column prop="num" label="数量" align="center" header-align="center"/>
-        <el-table-column prop="created_at" label="操作时间" align="center" header-align="center" sortable="custom"/>
+        <el-table-column prop="created_at" label="操作时间" align="center" header-align="center"/>
         <el-table-column prop="remark" label="备注" align="center" header-align="center">
           <template #default="scope">
               <el-tooltip :content="scope.row.remark" placement="top">