chore(ngrok): 移除多余的nat2启动配置

- 删除运维集控项目中ngrok启动脚本的nat2配置
- 删除预定系统中ngrok启动脚本的nat2配置
- 简化ngrok服务启动参数，仅保留nat1配置

运维集控/项目测试/运维标准版/ngrok/start.bat

-ngrok -config=ngrok.cfg start nat1 nat2
\ No newline at end of file
+ngrok -config=ngrok.cfg start nat1
\ No newline at end of file

预定系统/ngrok/start.bat

-ngrok -config=ngrok.cfg start nat1 nat2
\ No newline at end of file
+ngrok -config=ngrok.cfg start nat1
\ No newline at end of file