remove file (#410)

<!-- This is an auto-generated comment: release notes by OSS CodeRabbit
-->
### Summary by CodeRabbit

## Release Notes

### Chore
- Removed unused `mobile.go` file, simplifying the codebase and reducing
clutter.

> 🎉 Here's to cleaner code, so neat and fine, 🧹  
> Farewell to `mobile.go`, we're doing just fine. 🚀  
> With every pull request, our codebase shines, 💎  
> Onward we march, improving one line at a time. 🏁
<!-- end of auto-generated comment: release notes by OSS CodeRabbit -->