[Buildbot] #3427: remove Adobe Illustrator version of images in docs

[Buildbot trac]

#3427: remove Adobe Illustrator version of images in docs
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Reporter:  rutsky     |       Owner:  rutsky
    Type:  undecided  |      Status:  assigned
Priority:  minor      |   Milestone:  0.9.0
 Version:  master     |  Resolution:
Keywords:             |
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Comment (by dustin):

 http://docs.buildbot.net/ does link to a number of formats, but that was
 more "because they are there" than because someone needed them.  So if we
 lost ePub I'm sure that would be OK, and I suspect PDF would be fine too.

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Ticket URL: <http://trac.buildbot.net/ticket/3427#comment:14>
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