[Buildbot] #3577: remove "repo" command from worker

[Buildbot trac]

#3577: remove "repo" command from worker
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Reporter:  rutsky     |       Owner:
    Type:  undecided  |      Status:  new
Priority:  major      |   Milestone:  0.9.0
 Version:  master     |  Resolution:
Keywords:             |
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Comment (by tardyp):

 https://github.com/buildbot/buildbot/pull/2335

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Ticket URL: <http://trac.buildbot.net/ticket/3577#comment:1>
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