Cleanup changelog.

Author: thet

CHANGES.md

@@ -6,7 +6,6 @@ See the [history](./docs/history/index.md) for older changelog entries.
 
 ## [9.9.0](https://github.com/Patternslib/patterns/compare/9.9.0-beta.3...9.9.0) (2023-05-23)
 
-## [9.9.0](https://github.com/Patternslib/patterns/compare/9.9.0-beta.3...9.9.0) (2023-05-23)
 
 ## [9.9.0-beta.3](https://github.com/Patternslib/patterns/compare/9.9.0-beta.2...9.9.0-beta.3) (2023-05-17)
 
@@ -1539,4 +1538,4 @@ For usage see: src/core/basepattern.md
 
 -   **docs:** Move upgrade 2 to 3 guide to history section. ([5449491](https://github.com/Patternslib/patterns/commit/5449491cbb851af9d1a2b3f5f017a6b599f8d9a7))
 
--   **docs:** Remove outdated roadmap and version files. ([8f9e0cb](https://github.com/Patternslib/patterns/commit/8f9e0cb5a992303d961c4a9790a41ceb3e77547c))
+-   **docs:** Remove outdated roadmap and version files. ([8f9e0cb](https://github.com/Patternslib/patterns/commit/8f9e0cb5a992303d961c4a9790a41ceb3e77547c))