[MacPorts] #19280: expat: remove no_static variant

[MacPorts]

#19280: expat: remove no_static variant
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 Reporter:  ryandesign@…             |       Owner:  ryandesign@…           
     Type:  enhancement              |      Status:  new                    
 Priority:  Normal                   |   Milestone:  Port Enhancements      
Component:  ports                    |     Version:  1.7.1                  
 Keywords:                           |        Port:  expat                  
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 expat has a variant called no_static which disables the building of the
 static library. No other ports have a variant by this name. MacPorts
 policy is to build static and dynamic libraries for all ports whenever
 possible. expat's no_static variant was created in r10738. Previously the
 port always disabled the static library. Now it's just a variant, but
 there's no reason to have it since the static library doesn't take
 appreciably longer to build and it's small. Having fewer variants is
 better so the variant should be deleted.

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Ticket URL: <http://trac.macports.org/ticket/19280>
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