[MacPorts] #34984: fgsl: delete doc variant

[MacPorts]

#34984: fgsl: delete doc variant
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 Reporter:  ryandesign@…             |       Owner:  takeshi@…           
     Type:  enhancement              |      Status:  new                 
 Priority:  Normal                   |   Milestone:                      
Component:  ports                    |     Version:  2.1.1               
 Keywords:  haspatch                 |        Port:  fgsl                
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 The doc variant of the fgsl port does nothing, so it should be deleted.

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Ticket URL: <https://trac.macports.org/ticket/34984>
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