delete redirect ht

Author: PatrickFarley

articles/ai-services/.openpublishing.redirection.ai-services.json

@@ -155,6 +155,11 @@
       "redirect_url": "/azure/ai-services/content-safety/concepts/custom-categories",
       "redirect_document_id": true
     },
+    {
+      "source_path_from_root": "/articles/ai-services/content-safety/how-to/custom-categories.md",
+      "redirect_url": "/azure/ai-services/content-safety/quickstart-custom-categories",
+      "redirect_document_id": true
+    },
     {
       "source_path_from_root": "/articles/ai-services/speech-service/how-to-custom-voice-create-voice.md",
       "redirect_url": "/azure/ai-services/speech-service/professional-voice-train-voice",

articles/ai-services/content-safety/how-to/custom-categories.md

@@ -63,8 +63,6 @@ items:
     href: ./limited-access.md
 - name: How-to guides
   items:
-  - name: Use custom categories (standard) (preview)
-    href: how-to/custom-categories.md
   - name: Use custom categories (rapid) (preview)
     href: how-to/custom-categories-rapid.md
   - name: Use a blocklist