Merge pull request #9343 from rabbitmq/mk-3.11.23-release-notes-update

Update 3.11.23 release notes

Author: michaelklishin

release-notes/3.11.23.md

@@ -43,22 +43,6 @@ Release notes can be found on GitHub at [rabbitmq-server/release-notes](https://
    GitHub issue: [#9223](https://github.com/rabbitmq/rabbitmq-server/pull/9223)
 
 
-### AMQP 1.0 Plugin
-
-#### Bug Fixes
-
-* Reverted [#8739](https://github.com/rabbitmq/rabbitmq-server/pull/8739) where unroutable AMQP 1.0 messages were settled with
-  a "released" disposition state. Some clients do not handle this outcome correctly, throwing exceptions,
-  which can create unnecessary and resource-consuming client reconnection and re-publishing loops.
-
-  On the RabbitMQ node end this looks like abnormally high CPU usage of a node that takes in a certain number of unroutable messages.
-
-  The original change (#8739) will be re-introduced with options for better compatibility with such irregularly-behaved clients
-  in RabbitMQ 3.13.x or 3.12.x.
-
-  GitHub issue: [#9334](https://github.com/rabbitmq/rabbitmq-server/pull/9334)
-
-
 ## Dependency Upgrades
 
  * `osiris` was upgraded to [`1.6.4`](https://github.com/rabbitmq/osiris/tags)