remove appid from tcb-demo-namecard

## Description
Remove appid from `tcb-demo-namecard`

## Code 
https://github.com/TencentCloudBase/Cloudbase-Examples/blob/f1bfcc23f71ee3ffa8a66b18621ff4e74cae878e/miniprogram/tcb-demo-namecard/intact/project.config.json#L19

## How to 
1. **Star Project First !!!** 
1. Fork Project
2. Edit File
4. Make a Pull Request.