Merge pull request #287628 from baanders/9-30-retire-signalr

ADT: Manual retire of SignalR article

Author: Stacyrch140

articles/digital-twins/.openpublishing.redirection.digital-twins.json

@@ -1,5 +1,10 @@
 {
   "redirections": [
+    {
+      "source_path": "how-to-integrate-azure-signalr.md",
+      "redirect_url": "/previous-versions/azure/digital-twins/how-to-integrate-azure-signalr",
+      "redirect_document_id": false
+    },
     {
       "source_path": "how-to-provision-using-device-provisioning-service.md",
       "redirect_url": "/previous-versions/azure/digital-twins/how-to-provision-using-device-provisioning-service",

articles/digital-twins/TOC.yml

@@ -111,8 +111,6 @@
       href: how-to-authenticate-client.md
     - name: Create an app registration with Azure Digital Twins access
       href: how-to-create-app-registration.md
-    - name: Integrate with Azure SignalR Service
-      href: how-to-integrate-azure-signalr.md
   - name: Connect input
     items:
     - name: Ingest telemetry from IoT Hub