refs #576, removes identifier test from generic_file spec
refs #576, removes identifier test from generic_file spec

samvera/hyrax,ndlib/scholarsphere,samvera/hyrax,zhang4952/scholarsphere,samvera/hyrax,zhang4952/scholarsphere,samvera/hyrax,zhang4952/scholarsphere,zhang4952/scholarsphere,jeremyf/sufia,jeremyf/sufia,ndlib/scholarsphere,ndlib/scholarsphere