[MacPorts] #34234: unify py-serial, drop py24 version

[MacPorts]

#34234: unify py-serial, drop py24 version
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  Reporter:  snc@…             |       Owner:  macsforever2000@…           
      Type:  enhancement       |      Status:  closed                      
  Priority:  Normal            |   Milestone:                              
 Component:  ports             |     Version:                              
Resolution:  fixed             |    Keywords:  haspatch                    
      Port:  py-serial         |  
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Comment(by ryandesign@…):

 Has duplicate #30871.

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Ticket URL: <https://trac.macports.org/ticket/34234#comment:3>
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