Update language-support.md

Remove preivew

Author: renaaliu

articles/ai-services/language-service/personally-identifiable-information/language-support.md

@@ -102,7 +102,7 @@ Use this article to learn which natural languages are supported by the PII and c
 |Chinese-Simplified   |`zh-hans`    |`zh` also accepted|
 |Chinese-Traditional  |`zh-hant`    |                  |
 
-# [PII for conversations (preview)](#tab/conversations)
+# [PII for conversations](#tab/conversations)
 
 ## PII language support