Remove alias

Author: quinntracy

content/en/docs/releasenotes/catalog/2021.md

@@ -5,8 +5,6 @@ url: /releasenotes/catalog/2021/
 description: "Release notes for updates to the Mendix Catalog"
 weight: 60
 numberless_headings: true
-aliases:
-    - /releasenotes/data-hub/
 #This document is mapped to the landing page, update the link there if renaming or moving the doc file.
 ---