Remove unused method isOptionSet(...).
Remove unused method isOptionSet(...).

Last usage removed in 468e6d9c3da6c675825e3890bd1c05d8888458e5

gmilos/swift,aschwaighofer/swift,shahmishal/swift,huonw/swift,allevato/swift,devincoughlin/swift,frootloops/swift,devincoughlin/swift,milseman/swift,roambotics/swift,sschiau/swift,practicalswift/swift,kperryua/swift,atrick/swift,sschiau/swift,lorentey/swift,therealbnut/swift,Jnosh/swift,brentdax/swift,brentdax/swift,gottesmm/swift,swiftix/swift,IngmarStein/swift,gregomni/swift,xedin/swift,brentdax/swift,xedin/swift,kperryua/swift,karwa/swift,felix91gr/swift,frootloops/swift,atrick/swift,amraboelela/swift,gmilos/swift,roambotics/swift,OscarSwanros/swift,shahmishal/swift,stephentyrone/swift,djwbrown/swift,xwu/swift,JGiola/swift,benlangmuir/swift,hooman/swift,bitjammer/swift,stephentyrone/swift,natecook1000/swift,shajrawi/swift,JaSpa/swift,calebd/swift,practicalswift/swift,zisko/swift,benlangmuir/swift,alblue/swift,practicalswift/swift,gribozavr/swift,tardieu/swift,return/swift,calebd/swift,ahoppen/swift,tjw/swift,JaSpa/swift,shajrawi/swift,codestergit/swift,xwu/swift,shajrawi/swift,kperryua/swift,jtbandes/swift,ahoppen/swift,xwu/swift,jtbandes/swift,zisko/swift,therealbnut/swift,karwa/swift,return/swift,huonw/swift,felix91gr/swift,austinzheng/swift,jopamer/swift,sschiau/swift,shahmishal/swift,IngmarStein/swift,swiftix/swift,nathawes/swift,austinzheng/swift,gribozavr/swift,OscarSwanros/swift,apple/swift,glessard/swift,karwa/swift,codestergit/swift,CodaFi/swift,gottesmm/swift,alblue/swift,xedin/swift,parkera/swift,lorentey/swift,therealbnut/swift,JGiola/swift,ben-ng/swift,OscarSwanros/swift,felix91gr/swift,shajrawi/swift,therealbnut/swift,milseman/swift,hooman/swift,atrick/swift,shajrawi/swift,Jnosh/swift,lorentey/swift,IngmarStein/swift,danielmartin/swift,frootloops/swift,tardieu/swift,aschwaighofer/swift,harlanhaskins/swift,manavgabhawala/swift,gottesmm/swift,aschwaighofer/swift,natecook1000/swift,devincoughlin/swift,arvedviehweger/swift,modocache/swift,deyton/swift,brentdax/swift,jmgc/swift,gribozavr/swift,atrick/swift,manavgabhawala/swift,gribozavr/swift,calebd/swift,practicalswift/swift,therealbnut/swift,modocache/swift,CodaFi/swift,alblue/swift,hooman/swift,shahmishal/swift,roambotics/swift,felix91gr/swift,gribozavr/swift,ben-ng/swift,roambotics/swift,sschiau/swift,tkremenek/swift,rudkx/swift,glessard/swift,xwu/swift,aschwaighofer/swift,jckarter/swift,natecook1000/swift,CodaFi/swift,glessard/swift,karwa/swift,zisko/swift,djwbrown/swift,jmgc/swift,devincoughlin/swift,djwbrown/swift,airspeedswift/swift,austinzheng/swift,codestergit/swift,Jnosh/swift,nathawes/swift,calebd/swift,parkera/swift,ahoppen/swift,amraboelela/swift,JaSpa/swift,hughbe/swift,jtbandes/swift,karwa/swift,danielmartin/swift,djwbrown/swift,sschiau/swift,xwu/swift,apple/swift,jckarter/swift,tjw/swift,modocache/swift,jopamer/swift,deyton/swift,swiftix/swift,tardieu/swift,tardieu/swift,harlanhaskins/swift,JaSpa/swift,ben-ng/swift,rudkx/swift,IngmarStein/swift,hughbe/swift,tkremenek/swift,xedin/swift,aschwaighofer/swift,devincoughlin/swift,frootloops/swift,kstaring/swift,tinysun212/swift-windows,alblue/swift,bitjammer/swift,jckarter/swift,amraboelela/swift,benlangmuir/swift,Jnosh/swift,amraboelela/swift,jopamer/swift,deyton/swift,airspeedswift/swift,hughbe/swift,ahoppen/swift,xedin/swift,deyton/swift,tjw/swift,felix91gr/swift,ben-ng/swift,natecook1000/swift,zisko/swift,tinysun212/swift-windows,huonw/swift,parkera/swift,parkera/swift,zisko/swift,modocache/swift,huonw/swift,tjw/swift,kstaring/swift,codestergit/swift,OscarSwanros/swift,tkremenek/swift,zisko/swift,uasys/swift,tkremenek/swift,bitjammer/swift,ahoppen/swift,shajrawi/swift,djwbrown/swift,huonw/swift,lorentey/swift,milseman/swift,shajrawi/swift,apple/swift,glessard/swift,harlanhaskins/swift,frootloops/swift,tjw/swift,sschiau/swift,therealbnut/swift,manavgabhawala/swift,allevato/swift,milseman/swift,shahmishal/swift,hughbe/swift,hughbe/swift,jckarter/swift,parkera/swift,swiftix/swift,JGiola/swift,karwa/swift,jopamer/swift,tkremenek/swift,gmilos/swift,airspeedswift/swift,atrick/swift,harlanhaskins/swift,bitjammer/swift,tinysun212/swift-windows,danielmartin/swift,gregomni/swift,tardieu/swift,airspeedswift/swift,sschiau/swift,devincoughlin/swift,gmilos/swift,benlangmuir/swift,OscarSwanros/swift,uasys/swift,gmilos/swift,practicalswift/swift,bitjammer/swift,codestergit/swift,uasys/swift,Jnosh/swift,manavgabhawala/swift,allevato/swift,rudkx/swift,shahmishal/swift,danielmartin/swift,aschwaighofer/swift,codestergit/swift,uasys/swift,swiftix/swift,milseman/swift,gottesmm/swift,deyton/swift,practicalswift/swift,benlangmuir/swift,lorentey/swift,modocache/swift,harlanhaskins/swift,glessard/swift,gmilos/swift,tardieu/swift,frootloops/swift,arvedviehweger/swift,benlangmuir/swift,JaSpa/swift,nathawes/swift,shajrawi/swift,hughbe/swift,milseman/swift,parkera/swift,rudkx/swift,jopamer/swift,hughbe/swift,tkremenek/swift,alblue/swift,jmgc/swift,parkera/swift,JGiola/swift,Jnosh/swift,jtbandes/swift,amraboelela/swift,lorentey/swift,uasys/swift,jopamer/swift,huonw/swift,djwbrown/swift,uasys/swift,allevato/swift,austinzheng/swift,jopamer/swift,tjw/swift,arvedviehweger/swift,danielmartin/swift,airspeedswift/swift,OscarSwanros/swift,harlanhaskins/swift,brentdax/swift,arvedviehweger/swift,JaSpa/swift,karwa/swift,tinysun212/swift-windows,natecook1000/swift,arvedviehweger/swift,apple/swift,devincoughlin/swift,ahoppen/swift,allevato/swift,IngmarStein/swift,codestergit/swift,return/swift,IngmarStein/swift,IngmarStein/swift,modocache/swift,lorentey/swift,roambotics/swift,danielmartin/swift,austinzheng/swift,nathawes/swift,aschwaighofer/swift,jmgc/swift,JGiola/swift,jmgc/swift,xedin/swift,karwa/swift,hooman/swift,xedin/swift,alblue/swift,ben-ng/swift,kstaring/swift,jckarter/swift,CodaFi/swift,hooman/swift,kperryua/swift,natecook1000/swift,austinzheng/swift,natecook1000/swift,gottesmm/swift,calebd/swift,felix91gr/swift,amraboelela/swift,shahmishal/swift,ben-ng/swift,manavgabhawala/swift,practicalswift/swift,tardieu/swift,allevato/swift,calebd/swift,xwu/swift,stephentyrone/swift,nathawes/swift,deyton/swift,swiftix/swift,gribozavr/swift,CodaFi/swift,hooman/swift,JaSpa/swift,apple/swift,return/swift,stephentyrone/swift,bitjammer/swift,airspeedswift/swift,tkremenek/swift,lorentey/swift,Jnosh/swift,gmilos/swift,gribozavr/swift,jckarter/swift,apple/swift,jtbandes/swift,airspeedswift/swift,rudkx/swift,ben-ng/swift,sschiau/swift,bitjammer/swift,kstaring/swift,stephentyrone/swift,shahmishal/swift,atrick/swift,frootloops/swift,CodaFi/swift,hooman/swift,gregomni/swift,gregomni/swift,jtbandes/swift,gottesmm/swift,harlanhaskins/swift,gottesmm/swift,devincoughlin/swift,calebd/swift,kstaring/swift,felix91gr/swift,nathawes/swift,jtbandes/swift,kperryua/swift,OscarSwanros/swift,manavgabhawala/swift,xedin/swift,uasys/swift,jckarter/swift,amraboelela/swift,tinysun212/swift-windows,alblue/swift,austinzheng/swift,stephentyrone/swift,jmgc/swift,danielmartin/swift,parkera/swift,swiftix/swift,tinysun212/swift-windows,arvedviehweger/swift,tinysun212/swift-windows,zisko/swift,kstaring/swift,JGiola/swift,return/swift,glessard/swift,modocache/swift,kperryua/swift,gregomni/swift,brentdax/swift,stephentyrone/swift,CodaFi/swift,practicalswift/swift,return/swift,manavgabhawala/swift,brentdax/swift,gribozavr/swift,therealbnut/swift,return/swift,gregomni/swift,arvedviehweger/swift,allevato/swift,djwbrown/swift,huonw/swift,milseman/swift,kstaring/swift,nathawes/swift,roambotics/swift,kperryua/swift,deyton/swift,tjw/swift,jmgc/swift,rudkx/swift,xwu/swift