[DRE-maint] ruby-omniauth-crowd is marked for autoremoval from testing

[Debian testing autoremoval watch]

ruby-omniauth-crowd 2.2.3-2 is marked for autoremoval from testing on 2017-09-15

It is affected by these RC bugs:
867654: ruby-omniauth-crowd: FTBFS: ERROR: Test "ruby2.3" failed: Failure/Error: http.request(req)