fixing broken links

Author: Blackmist

articles/machine-learning/.openpublishing.redirection.machine-learning.json

@@ -4105,11 +4105,6 @@
         "redirect_url": "/azure/machine-learning/migrate-execute-r-script",
         "redirect_document_id": true
     },
-    {
-        "source_path_from_root": "/articles/machine-learning/v1/migrate-overview.md",
-        "redirect_url": "/azure/machine-learning/migrate-overview",
-        "redirect_document_id": false
-    },
     {
         "source_path_from_root": "/articles/machine-learning/v-fake/migrate-rebuild-experiment.md",
         "redirect_url": "/azure/machine-learning/migrate-rebuild-experiment",