The concept of a redirect chain didn't really work for a value of
max redirect > 1. In the ideal world, we just want to have a source
which points to target (source -> target) discarding the concept of
a redirect chain completely.
Having something like: source -> target -> target1 -> target2 doesn't
really work well with the current database design.
NOTE: Support for $wgMaxRedirect will be removed soon hence
deprecation without interfaces for replacement.
Bug: T290639
Change-Id: I469de6f85e405e8ddbe7abaa5b99b77cb9cf415d
