fix duplicate entries after merge

CHANGELOG.md

@@ -6,28 +6,6 @@
 * Dependency: pika >= 1.1.0
 * Enhancement: add support for webcal subscriptions
 * Enhancement: major update of WebUI (design+features)
-
-## 3.1.9
-
-* Add: support for Python 3.11 + 3.12
-* Drop: support for Python 3.6
-* Fix: MOVE in case listen on non-standard ports or behind reverse proxy
-* Fix: stricter requirements of Python 3.11
-* Fix: HTML pages
-* Fix: Main Component is missing when only recurrence id exists
-* Fix: passlib don't support bcrypt>=4.1
-* Fix: web login now proper encodes passwords containing %XX (hexdigits)
-* Enhancement: user-selectable log formats
-* Enhancement: autodetect logging to systemd journal
-* Enhancement: test code
-* Enhancement: option for global permit to delete collection
-* Enhancement: auth type 'htpasswd' supports now 'htpasswd_encryption' sha256/sha512 and "autodetect" for smooth transition
-* Improve: Dockerfiles
-* Improve: server socket listen code + address format in log
-* Update: documentations + examples
-* Dependency: limit typegard version < 3
-* General: code cosmetics
-
 * Adjust: change default loglevel to "info"
 
 ## 3.1.9