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

Signed-off-by: NAustin <liaozhiqi7@huawei.com>

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

@@ -54,10 +54,7 @@
   - [轻量和小型系统设备开发示例](guide/device-wlan-led-control.md) 
   - [标准系统设备开发示例](guide/device-clock-guide.md) 
 - 调测
-  - [测试用例开发](subsystems/subsys-testguide-test.md)	
   - [调测工具](subsystems/subsys-toolchain-hdc-guide.md) 
-- XTS认证
-  - [XTS认证](subsystems/subsys-xts-guide.md)
 - 工具
   - [Docker编译环境](get-code/gettools-acquire.md)
   - [IDE集成开发环境](get-code/gettools-ide.md)