update zh-cn/device-dev/Readme-CN.md.

Signed-off-by: N zengyawen <zengyawen1@huawei.com>

update zh-cn/device-dev/Readme-CN.md.
Signed-off-by: N zengyawen <zengyawen1@huawei.com>
06bca01e · zengyawen · Gitee · faf45f15 · 06bca01e
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zh-cn/device-dev/Readme-CN.md zh-cn/device-dev/Readme-CN.md +0 -1

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--- a/zh-cn/device-dev/Readme-CN.md
+++ b/zh-cn/device-dev/Readme-CN.md
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  - [AI框架](subsystems/subsys-ai-aiframework-devguide.md) 	
  - [数据管理](subsystems/subsys-data-relational-database-overview.md)
  - [Sensor服务](subsystems/subsys-sensor-overview.md)
-  - [USB服务](subsystems/subsys-usbservice-overview.md)
  - [用户程序框架](subsystems/subsys-application-framework-overview.md)
  - [OTA升级](subsystems/subsys-ota-guide.md)
  - [电话服务](subsystems/subsys-tel-overview.md)