[MacPorts] #61862: buildbot jobs: remove MaxCDN zone purge

[MacPorts]

#61862: buildbot jobs: remove MaxCDN zone purge
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 Reporter:  jmroot         |      Owner:  admin@…
     Type:  defect         |     Status:  new
 Priority:  Normal         |  Milestone:
Component:  buildbot/mpbb  |    Version:
 Keywords:                 |       Port:
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 Not sure if this will cause jobs to fail at some point but it's useless
 now anyway.

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Ticket URL: <https://trac.macports.org/ticket/61862>
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