[Buildbot] #3592: remove reference to tardyp/buildbot-worker

[Buildbot trac]

#3592: remove reference to tardyp/buildbot-worker
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Reporter:  tardyp  |      Owner:
    Type:  task    |     Status:  new
Priority:  major   |  Milestone:  0.9.1
 Version:  master  |   Keywords:
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 tardyp/buildbot-worker has workaround bug for hyper's init which disable
 SIGCHILD signal

 https://github.com/tardyp/buildbot/blob/docker/worker/docker/buildbot.tac#L6

 once hyper fixes this bug, we should remove the link to tardyp/buildbot-
 worker from hyper integration test

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Ticket URL: <http://trac.buildbot.net/ticket/3592>
Buildbot <http://buildbot.net/>
Buildbot: build/test automation