revert: remove changelog entry from CHANGELOG.md (handled in user_guide)

Author: gr8man

CHANGELOG.md

@@ -1,17 +1,5 @@
 # Changelog
 
-## [v4.7.5](https://github.com/codeigniter4/CodeIgniter4/tree/v4.7.5) (Unreleased)
-
-[Full Changelog](https://github.com/codeigniter4/CodeIgniter4/compare/v4.7.4...v4.7.5)
-
-### Refactoring
-
-* refactor: simplify and optimize handleRequest method in CodeIgniter by @gr8man in https://github.com/codeigniter4/CodeIgniter4/pull/10369
-
-### Breaking Changes
-
-* **CodeIgniter:** `storePreviousURL()` no longer accepts arbitrary request objects with an `isAJAX()` method — only `IncomingRequest` instances are checked. This aligns with the fact that `isAJAX()` only exists on `IncomingRequest`, so CLI requests were never affected. If you rely on a custom request class that implements `isAJAX()` and passes it to `storePreviousURL()`, you must ensure it extends `IncomingRequest`.
-
 ## [v4.7.4](https://github.com/codeigniter4/CodeIgniter4/tree/v4.7.4) (2026-07-07)
 [Full Changelog](https://github.com/codeigniter4/CodeIgniter4/compare/v4.7.3...v4.7.4)