GA release - remove preview banner

Author: amagginetti

articles/communication-services/concepts/voice-video-calling/call-diagnostics.md

@@ -17,8 +17,6 @@ ms.subservice: calling
 
 # Call Diagnostics
 
-[!INCLUDE [Public Preview Disclaimer](../../includes/public-preview-include-document.md)]
-
 Understanding your call quality and reliability is foundational to
 delivering a great customer calling experience. There are various
 issues that can affect the quality of your calls, such as poor internet
@@ -315,4 +313,4 @@ quality](https://learn.microsoft.com/azure/communication-services/concepts/voice
       - name: End of Call Survey
         href: concepts/voice-video-calling/end-of-call-survey-concept.md
         displayName: diagnostics, Survey, feedback, quality, reliability, users, end, call, quick
- -->
+ -->