update to includes file

Author: julieMSFT

articles/synapse-analytics/includes/note-preview.md

@@ -1,6 +1,4 @@
-<token>
 > [!IMPORTANT]
 > Azure Synapse Analytics (Workspaces) is currently in public preview.
 > This preview version is provided without a service level agreement, and it's not recommended for production workloads. Certain features might not be supported or might have constrained capabilities. 
 > For more information, see [Supplemental Terms of Use for Microsoft Azure Previews](https://azure.microsoft.com/support/legal/preview-supplemental-terms/).
->/token>