[MacPorts] #55503: opensync: remove port

[MacPorts]

#55503: opensync: remove port
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 Reporter:  seanfarley  |      Owner:
     Type:  defect      |     Status:  new
 Priority:  Normal      |  Milestone:
Component:  ports       |    Version:
 Keywords:              |       Port:
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 I forgot our process of removing a port but opensync no longer builds and
 seems abandoned: https://en.wikipedia.org/wiki/OpenSync_(software)

 Should we just remove this?

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Ticket URL: <https://trac.macports.org/ticket/55503>
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