rollback v24 update for changelog sections

Author: haschek

CHANGELOG.md

@@ -6,8 +6,6 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/) and this p
 
 ## [Unreleased]
 
-## [24.0.0] - 2024-12-17
-
 This is a major release, and it might be not compatible with your current usage of our library. Please read about the necessary changes in the section about how to migrate.
 
 ### Migration from v23 to v24