remove another dup redirection

Author: diberry

.openpublishing.redirection.json

@@ -810,11 +810,6 @@
       "redirect_url": "/azure/cognitive-services/QnAMaker/Quickstarts/reference-document-format-guidelines",
       "redirect_document_id": false
     },
-    {
-      "source_path": "articles/cognitive-services/QnAMaker/concepts/data-sources-supported.md",
-      "redirect_url": "/azure/cognitive-services/QnAMaker/Quickstarts/reference-document-format-guidelines",
-      "redirect_document_id": false
-    },
     {
       "source_path": "articles/cognitive-services/QnAMaker/tutorials/choosing-capacity-qnamaker-deployment.md",
       "redirect_url": "/azure/cognitive-services/Concepts/azure-resources",