Remove preview note from functions tutorial

Author: kgremban

articles/iot-edge/tutorial-deploy-function.md

@@ -28,9 +28,6 @@ You can use Azure Functions to deploy code that implements your business logic d
 ![Diagram - Tutorial architecture: stage and deploy function module](./media/tutorial-deploy-function/functions-architecture.png)
 </center>
 
->[!NOTE]
->Azure Function modules on Azure IoT Edge are in [public preview](https://azure.microsoft.com/support/legal/preview-supplemental-terms/).
-
 The Azure function that you create in this tutorial filters the temperature data that's generated by your device. The function only sends messages upstream to Azure IoT Hub when the temperature is above a specified threshold.
 
 [!INCLUDE [quickstarts-free-trial-note](../../includes/quickstarts-free-trial-note.md)]