Aus SubmersWiki

There's generally no need to delete redirects. They do not occupy a significant amount of database space, and they do not show up in wiki search results. If a page name is vaguely meaningful there's no harm (and some benefit) in having it as a redirect to the most relevant existing page in your wiki. However...

If you do need to delete a redirect, e.g. if the page name of the redirect is offensive, or you wish to discourage people from referring to concept by that name, then you simply go to the redirect page, and follow the same procedure for deleting a page.