[Due for payment 2025-10-28] Remove unused useSearchState hook

[luacmartins]

Problem

useSearchState is unused

Solution

Remove dead code

[melvin-bot]

Reviewing label has been removed, please complete the "BugZero Checklist".

[melvin-bot]

The solution for this issue has been 🚀 deployed to production 🚀 in version 9.2.35-4 and is now subject to a 7-day regression period 📆. Here is the list of pull requests that resolve this issue:

• [No QA] Remove unused hook #72365

If no regressions arise, payment will be issued on 2025-10-28. 🎊

[luacmartins]

Done