remove availability note

Author: JnHs

articles/azure-arc/kubernetes/extensions-release.md

@@ -1,6 +1,6 @@
 ---
 title: "Available extensions for Azure Arc-enabled Kubernetes clusters"
-ms.date: 09/26/2023
+ms.date: 09/29/2023
 ms.topic: how-to
 description: "See which extensions are currently available for Azure Arc-enabled Kubernetes clusters and view release notes."
 ---
@@ -123,9 +123,6 @@ The currently supported versions of the `microsoft.flux` extension are described
 
 ### 1.7.7 (September 2023)
 
-> [!NOTE]
-> We have started to roll out this release across regions. We'll remove this note once version 1.7.6 is available to all supported regions.
-
 Flux version: [Release v2.0.1](https://github.com/fluxcd/flux2/releases/tag/v2.0.1)
 
 - source-controller: v1.0.1