[MacPorts] #33977: py-dot: remove py24 and py25 subport

[MacPorts]

#33977: py-dot: remove py24 and py25 subport
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  Reporter:  snc@…            |      Owner:  phw@…
      Type:  defect           |     Status:  new
  Priority:  Normal           |  Milestone:
 Component:  ports            |    Version:
Resolution:                   |   Keywords:  python24
      Port:  py-dot py24-dot  |
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Comment (by petr@…):

 Okay, for py{ver}-dot is replaced by py{ver}-pydot. However, there is no
 `py24-pydot` subport, therefore py24-dot has no replacement.

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Ticket URL: <https://trac.macports.org/ticket/33977#comment:4>
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