[DRE-maint] redmine is marked for autoremoval from testing

[Debian testing autoremoval watch]

redmine 3.4.6-1 is marked for autoremoval from testing on 2019-02-17

It is affected by these RC bugs:
919805: redmine: FTBFS (Could not find gem mail)

It (build-)depends on packages with these RC bugs:
918260: ruby-protected-attributes: Depends: ruby-activemodel (< 2:5.0) but 2:5.2.0+dfsg-2 is to be installed
918265: ruby-actionpack-xml-parser: Depends: ruby-actionpack (< 2:5) but 2:5.2.0+dfsg-2 is to be installed