remove no longer used go 1.5.2 blob
remove no longer used go 1.5.2 blob

zachgersh/concourse,cjcjameson/concourse,zachgersh/concourse,concourse/concourse,concourse/concourse,concourse/concourse,concourse/concourse,concourse/concourse,cjcjameson/concourse,zachgersh/concourse,cjcjameson/concourse