[DRE-maint] ruby-devise-two-factor is marked for autoremoval from testing

[Debian testing autoremoval watch]

ruby-devise-two-factor 3.0.0-2 is marked for autoremoval from testing on 2017-09-02

It is affected by these RC bugs:
869045: ruby-devise-two-factor: FTBFS: ERROR: Test "ruby2.3" failed: Invalid gemspec in [devise-two-factor.gemspec]: No such file or directory - git

It (build-)depends on packages with these RC bugs:
869052: ruby-devise: FTBFS: ERROR: Test "ruby2.3" failed.