[CP Staging]Revert "Immediately show file size message for large attachments"

[AndrewGable]

Straight revert of #39334

Fixes #40492

Tests

1. Confirmed on iOS AdHoc that I could upload a ZIP attachment

[melvin-bot]

@amyevans Please copy/paste the Reviewer Checklist from here into a new comment on this PR and complete it. If you have the K2 extension, you can simply click: [this button]

[github-actions]

🧪🧪 Use the links below to test this adhoc build on Android, iOS, Desktop, and Web. Happy testing! 🧪🧪

Android 🤖	iOS 🍎
https://ad-hoc-expensify-cash.s3.amazonaws.com/android/40510/index.html	https://ad-hoc-expensify-cash.s3.amazonaws.com/ios/40510/index.html
Desktop 💻	Web 🕸️
https://ad-hoc-expensify-cash.s3.amazonaws.com/desktop/40510/NewExpensify.dmg	https://40510.pr-testing.expensify.com

---

👀 View the workflow run that generated this build 👀

[melvin-bot]

@amyevans looks like this was merged without a test passing. Please add a note explaining why this was done and remove the Emergency label if this is not an emergency.

[amyevans]

Not an emergency - skipped the checklists since it's a straight revert

[OSBotify]

🚀 Deployed to production by https://github.com/mountiny in version: 1.4.63-21 🚀

platform	result
🤖 android 🤖	success ✅
🖥 desktop 🖥	success ✅
🍎 iOS 🍎	success ✅
🕸 web 🕸	success ✅