Revert "Retire Azure Monitor Power BI article"

This reverts commit 4a1ab23.

Author: bwren

.openpublishing.redirection.json

@@ -44193,11 +44193,6 @@
       "redirect_url": "/azure/azure-monitor/logs/resource-manager-workspace",
       "redirect_document_id": false
     },
-    {
-      "source_path_from_root": "/articles/azure-monitor/visualize/powerbi.md",
-      "redirect_url": "/azure/azure-monitor/logs/log-powerbi",
-      "redirect_document_id": false
-    },
     {
       "source_path_from_root": "/articles/load-balancer/tutorial-load-balancer-standard-manage-portal.md",
       "redirect_url": "/azure/load-balancer/quickstart-load-balancer-standard-public-portal",