removed file and adjusted redirection

Author: rathishrms

articles/operator-insights/.openpublishing.redirection.operator-insights.json

@@ -165,11 +165,6 @@
     "redirect_url": "https://azure.microsoft.com/en-in/products/category/analytics",
     "redirect_document_id": false
 },
-{
-    "source_path_from_root": "/articles/operator-insights/operator-insights-faq.yml",
-    "redirect_url": "https://azure.microsoft.com/en-in/products/category/analytics",
-    "redirect_document_id": false
-},
 {
     "source_path_from_root": "/articles/operator-insights/overview.md",
     "redirect_url": "https://azure.microsoft.com/en-in/products/category/analytics",