Remove unnecessary check for authenticated user
Remove unnecessary check for authenticated user

Authentication is forced for /registration/*, so it's safe to assume
that session[:subject] is not nil.

University-of-Auckland/rapidconnect,University-of-Auckland/rapidconnect,ausaccessfed/rapidconnect,ausaccessfed/rapidconnect,University-of-Auckland/rapidconnect,ausaccessfed/rapidconnect,ausaccessfed/rapidconnect,University-of-Auckland/rapidconnect