style:移除vue-multiselect样式（项目中并未安装vue-multiselect plugin）

Jimi

2023-03-30 95742bf5bdd40f999b386e6b9719b9455b01c410

 ruoyi-admin/src/main/java/com/ruoyi/web/controller/monitor/SysOperlogController.java

@@ -64,6 +64,6 @@
    public AjaxResult clean()

    {

        operLogService.cleanOperLog();

        return AjaxResult.success();

        return success();

    }

}