[MacPorts] #56110: Travis: skip building ports from the obsolete PortGroup

[MacPorts]

#56110: Travis: skip building ports from the obsolete PortGroup
----------------------------+--------------------
  Reporter:  mojca          |      Owner:  l2dy
      Type:  defect         |     Status:  closed
  Priority:  Low            |  Milestone:
 Component:  buildbot/mpbb  |    Version:
Resolution:  fixed          |   Keywords:
      Port:                 |
----------------------------+--------------------
Changes (by l2dy):

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


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Ticket URL: <https://trac.macports.org/ticket/56110#comment:11>
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