优化响应速度，取消flag标记以及具体设备的mac。

kaiyu

2020-10-09 c04171420e9522422d110acc165bd8c608c592fb

 src/main/java/com/moral/entity/DeviceVersion.java

@@ -16,5 +16,9 @@

    private Date createTime;

    private Date updateTime;

    private Boolean isDelete;

    private String description;
}