Remove convert to PnP article

Author: dominicbetts

articles/iot/.openpublishing.redirection.iot.json

@@ -115,5 +115,10 @@
       "redirect_url": "/previous-versions/azure/iot/iot-mqtt-5-preview-reference",
       "redirect_document_id": false
     }
+    {
+      "source_path": "articles/iot/howto-convert-to-pnp.md",
+      "redirect_url": "/azure/iot/overview-iot-plug-and-play",
+      "redirect_document_id": false
+    }
   ]
 }

articles/iot/TOC.yml

@@ -39,8 +39,6 @@ items:
         items:
         - name: Manage digital twins
           href: howto-manage-digital-twin.md
-        - name: Convert a device to IoT Plug and Play
-          href: howto-convert-to-pnp.md
       - name: Connect an on-premises SAP system to Azure
         href: howto-connect-on-premises-sap-to-azure.md
       - name: Enable an industrial dataspace in Azure