[Buildbot] #3178: remove IStatusReceiver and friends and implementers

[Buildbot trac]

#3178: remove IStatusReceiver and friends and implementers
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Reporter:  dustin       |       Owner:
    Type:  enhancement  |      Status:  closed
Priority:  major        |   Milestone:  0.9.0
 Version:  master       |  Resolution:  fixed
Keywords:               |
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Changes (by dustin):

 * status:  new => closed
 * resolution:   => fixed


Comment:

 This is just the tail end of #2648.

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Ticket URL: <http://trac.buildbot.net/ticket/3178#comment:1>
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