[Build System: build-presets] Remove duplicate flag from preset which was causing the build_swift tests to fail when run with a Python 3 interpreter.
[Build System: build-presets] Remove duplicate flag from preset which was causing the build_swift tests to fail when run with a Python 3 interpreter.

allevato/swift,xwu/swift,gribozavr/swift,jckarter/swift,gribozavr/swift,xwu/swift,tkremenek/swift,airspeedswift/swift,apple/swift,nathawes/swift,apple/swift,allevato/swift,ahoppen/swift,gregomni/swift,ahoppen/swift,harlanhaskins/swift,parkera/swift,JGiola/swift,tkremenek/swift,benlangmuir/swift,JGiola/swift,parkera/swift,jmgc/swift,CodaFi/swift,hooman/swift,parkera/swift,airspeedswift/swift,tkremenek/swift,apple/swift,gregomni/swift,JGiola/swift,allevato/swift,apple/swift,rudkx/swift,jmgc/swift,atrick/swift,benlangmuir/swift,ahoppen/swift,allevato/swift,nathawes/swift,benlangmuir/swift,tkremenek/swift,xwu/swift,nathawes/swift,gregomni/swift,nathawes/swift,roambotics/swift,hooman/swift,aschwaighofer/swift,nathawes/swift,stephentyrone/swift,parkera/swift,airspeedswift/swift,gribozavr/swift,rudkx/swift,benlangmuir/swift,atrick/swift,CodaFi/swift,allevato/swift,gregomni/swift,hooman/swift,benlangmuir/swift,allevato/swift,allevato/swift,hooman/swift,CodaFi/swift,xwu/swift,ahoppen/swift,aschwaighofer/swift,aschwaighofer/swift,rudkx/swift,tkremenek/swift,tkremenek/swift,atrick/swift,atrick/swift,parkera/swift,glessard/swift,airspeedswift/swift,aschwaighofer/swift,tkremenek/swift,airspeedswift/swift,gregomni/swift,airspeedswift/swift,ahoppen/swift,apple/swift,roambotics/swift,apple/swift,xwu/swift,atrick/swift,jmgc/swift,JGiola/swift,aschwaighofer/swift,jmgc/swift,CodaFi/swift,jmgc/swift,airspeedswift/swift,jmgc/swift,stephentyrone/swift,hooman/swift,aschwaighofer/swift,gribozavr/swift,jckarter/swift,nathawes/swift,stephentyrone/swift,glessard/swift,xwu/swift,stephentyrone/swift,nathawes/swift,ahoppen/swift,rudkx/swift,gribozavr/swift,parkera/swift,CodaFi/swift,xwu/swift,rudkx/swift,harlanhaskins/swift,roambotics/swift,aschwaighofer/swift,jmgc/swift,roambotics/swift,CodaFi/swift,hooman/swift,jckarter/swift,glessard/swift,atrick/swift,JGiola/swift,stephentyrone/swift,harlanhaskins/swift,parkera/swift,hooman/swift,harlanhaskins/swift,roambotics/swift,jckarter/swift,benlangmuir/swift,harlanhaskins/swift,gregomni/swift,parkera/swift,glessard/swift,roambotics/swift,glessard/swift,gribozavr/swift,harlanhaskins/swift,gribozavr/swift,gribozavr/swift,jckarter/swift,harlanhaskins/swift,jckarter/swift,stephentyrone/swift,JGiola/swift,CodaFi/swift,rudkx/swift,stephentyrone/swift,jckarter/swift,glessard/swift