[MacPorts] #39237: py-distribute: remove Portfile and update py-setuptools

[MacPorts]

#39237: py-distribute: remove Portfile and update py-setuptools
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 Reporter:  robsonpeixoto@…  |      Owner:  macports-tickets@…
     Type:  update           |     Status:  new
 Priority:  Normal           |  Milestone:
Component:  ports            |    Version:
 Keywords:                   |       Port:  py-setuptools, py-distribute
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 http://mail.python.org/pipermail/distutils-sig/2013-May/020838.html

 Setuptools and Distribute are now merged, and the new home can be found at
 https://bitbucket.org/pypa/setuptools.

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Ticket URL: <https://trac.macports.org/ticket/39237>
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