[MacPorts] #50509: llvm-3.8: remove unnecessary openmp variant

[MacPorts]

#50509: llvm-3.8: remove unnecessary openmp variant
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  Reporter:  howarth.at.macports@…  |      Owner:  jeremyhu@…
      Type:  enhancement            |     Status:  new
  Priority:  Normal                 |  Milestone:
 Component:  ports                  |    Version:  2.3.4
Resolution:                         |   Keywords:  haspatch
      Port:  llvm-3.8               |
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Comment (by jeremyhu@…):

 Yes, I am quite aware of the benefits.  The issue isn't about the benefits
 of the change so much as the time involved and my tight schedule.  I'm
 going to just wait for these changes to land upstream and pull them in the
 next time I bump the port.

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Ticket URL: <https://trac.macports.org/ticket/50509#comment:8>
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