Remove the hack preventing the "Swift bit" from being used on 10.9.
Remove the hack preventing the "Swift bit" from being used on 10.9.

Greg fixed libobjc to correctly ignore the bit again, so we can start using
it. Note that this update requires a recent OS build; see
<rdar://problem/13065246>.

Swift SVN r4015

emilstahl/swift,kentya6/swift,CodaFi/swift,calebd/swift,jckarter/swift,sdulal/swift,nathawes/swift,amraboelela/swift,calebd/swift,CodaFi/swift,danielmartin/swift,dduan/swift,bitjammer/swift,ken0nek/swift,Ivacker/swift,cbrentharris/swift,hooman/swift,ahoppen/swift,milseman/swift,CodaFi/swift,deyton/swift,shahmishal/swift,gottesmm/swift,ahoppen/swift,mightydeveloper/swift,jmgc/swift,LeoShimonaka/swift,mightydeveloper/swift,parkera/swift,apple/swift,dreamsxin/swift,tkremenek/swift,parkera/swift,gottesmm/swift,kentya6/swift,shajrawi/swift,Ivacker/swift,swiftix/swift.old,JaSpa/swift,djwbrown/swift,shahmishal/swift,tkremenek/swift,lorentey/swift,alblue/swift,codestergit/swift,JaSpa/swift,gribozavr/swift,milseman/swift,kperryua/swift,sschiau/swift,Ivacker/swift,swiftix/swift,xwu/swift,xedin/swift,glessard/swift,LeoShimonaka/swift,parkera/swift,tinysun212/swift-windows,frootloops/swift,deyton/swift,benlangmuir/swift,karwa/swift,parkera/swift,mightydeveloper/swift,gribozavr/swift,kusl/swift,russbishop/swift,devincoughlin/swift,khizkhiz/swift,shajrawi/swift,natecook1000/swift,karwa/swift,arvedviehweger/swift,airspeedswift/swift,IngmarStein/swift,kperryua/swift,return/swift,khizkhiz/swift,xwu/swift,natecook1000/swift,tjw/swift,kstaring/swift,roambotics/swift,tinysun212/swift-windows,brentdax/swift,arvedviehweger/swift,ahoppen/swift,bitjammer/swift,LeoShimonaka/swift,swiftix/swift,johnno1962d/swift,KrishMunot/swift,cbrentharris/swift,huonw/swift,tjw/swift,austinzheng/swift,modocache/swift,djwbrown/swift,stephentyrone/swift,karwa/swift,swiftix/swift.old,jopamer/swift,kperryua/swift,tinysun212/swift-windows,jckarter/swift,natecook1000/swift,ben-ng/swift,JGiola/swift,uasys/swift,hughbe/swift,gottesmm/swift,huonw/swift,LeoShimonaka/swift,tinysun212/swift-windows,allevato/swift,johnno1962d/swift,sschiau/swift,modocache/swift,KrishMunot/swift,CodaFi/swift,alblue/swift,uasys/swift,airspeedswift/swift,benlangmuir/swift,gregomni/swift,SwiftAndroid/swift,russbishop/swift,nathawes/swift,xwu/swift,huonw/swift,swiftix/swift.old,milseman/swift,cbrentharris/swift,parkera/swift,glessard/swift,gottesmm/swift,felix91gr/swift,aschwaighofer/swift,ken0nek/swift,Jnosh/swift,LeoShimonaka/swift,SwiftAndroid/swift,kusl/swift,russbishop/swift,JGiola/swift,return/swift,parkera/swift,johnno1962d/swift,IngmarStein/swift,dduan/swift,arvedviehweger/swift,kentya6/swift,kentya6/swift,JGiola/swift,johnno1962d/swift,Ivacker/swift,djwbrown/swift,xedin/swift,ken0nek/swift,glessard/swift,parkera/swift,huonw/swift,kstaring/swift,russbishop/swift,brentdax/swift,sdulal/swift,sdulal/swift,allevato/swift,jopamer/swift,gmilos/swift,OscarSwanros/swift,kusl/swift,brentdax/swift,JGiola/swift,slavapestov/swift,tkremenek/swift,hooman/swift,sschiau/swift,ahoppen/swift,MukeshKumarS/Swift,natecook1000/swift,gribozavr/swift,IngmarStein/swift,arvedviehweger/swift,IngmarStein/swift,kusl/swift,milseman/swift,benlangmuir/swift,gregomni/swift,mightydeveloper/swift,allevato/swift,Jnosh/swift,manavgabhawala/swift,gmilos/swift,benlangmuir/swift,harlanhaskins/swift,amraboelela/swift,JaSpa/swift,tardieu/swift,swiftix/swift.old,tardieu/swift,brentdax/swift,brentdax/swift,nathawes/swift,IngmarStein/swift,felix91gr/swift,calebd/swift,stephentyrone/swift,JaSpa/swift,slavapestov/swift,rudkx/swift,practicalswift/swift,xwu/swift,alblue/swift,xedin/swift,atrick/swift,apple/swift,jopamer/swift,gribozavr/swift,brentdax/swift,kusl/swift,stephentyrone/swift,devincoughlin/swift,harlanhaskins/swift,amraboelela/swift,mightydeveloper/swift,tardieu/swift,shahmishal/swift,bitjammer/swift,sschiau/swift,practicalswift/swift,jtbandes/swift,manavgabhawala/swift,jmgc/swift,huonw/swift,therealbnut/swift,ben-ng/swift,sdulal/swift,aschwaighofer/swift,adrfer/swift,codestergit/swift,airspeedswift/swift,jmgc/swift,jopamer/swift,emilstahl/swift,tardieu/swift,OscarSwanros/swift,felix91gr/swift,hooman/swift,SwiftAndroid/swift,adrfer/swift,danielmartin/swift,OscarSwanros/swift,harlanhaskins/swift,bitjammer/swift,kentya6/swift,tinysun212/swift-windows,karwa/swift,OscarSwanros/swift,atrick/swift,allevato/swift,KrishMunot/swift,lorentey/swift,codestergit/swift,hooman/swift,tardieu/swift,airspeedswift/swift,deyton/swift,stephentyrone/swift,amraboelela/swift,manavgabhawala/swift,shajrawi/swift,ken0nek/swift,rudkx/swift,slavapestov/swift,roambotics/swift,devincoughlin/swift,practicalswift/swift,aschwaighofer/swift,gregomni/swift,atrick/swift,danielmartin/swift,alblue/swift,natecook1000/swift,austinzheng/swift,zisko/swift,apple/swift,jmgc/swift,mightydeveloper/swift,manavgabhawala/swift,dduan/swift,dreamsxin/swift,hughbe/swift,nathawes/swift,tardieu/swift,Jnosh/swift,shajrawi/swift,swiftix/swift,jopamer/swift,tjw/swift,KrishMunot/swift,hughbe/swift,Jnosh/swift,gregomni/swift,benlangmuir/swift,milseman/swift,roambotics/swift,amraboelela/swift,xwu/swift,ken0nek/swift,MukeshKumarS/Swift,felix91gr/swift,calebd/swift,therealbnut/swift,atrick/swift,zisko/swift,jtbandes/swift,dduan/swift,xedin/swift,apple/swift,johnno1962d/swift,russbishop/swift,gottesmm/swift,emilstahl/swift,kusl/swift,lorentey/swift,IngmarStein/swift,uasys/swift,hughbe/swift,devincoughlin/swift,practicalswift/swift,manavgabhawala/swift,Jnosh/swift,slavapestov/swift,stephentyrone/swift,johnno1962d/swift,ben-ng/swift,natecook1000/swift,JGiola/swift,xwu/swift,huonw/swift,brentdax/swift,johnno1962d/swift,danielmartin/swift,tjw/swift,slavapestov/swift,hughbe/swift,mightydeveloper/swift,cbrentharris/swift,gottesmm/swift,lorentey/swift,hooman/swift,sschiau/swift,atrick/swift,tardieu/swift,lorentey/swift,Ivacker/swift,austinzheng/swift,shahmishal/swift,alblue/swift,gmilos/swift,aschwaighofer/swift,calebd/swift,ahoppen/swift,kstaring/swift,gribozavr/swift,therealbnut/swift,djwbrown/swift,huonw/swift,milseman/swift,swiftix/swift,cbrentharris/swift,felix91gr/swift,danielmartin/swift,xedin/swift,jckarter/swift,shajrawi/swift,KrishMunot/swift,CodaFi/swift,bitjammer/swift,harlanhaskins/swift,kperryua/swift,slavapestov/swift,therealbnut/swift,sdulal/swift,mightydeveloper/swift,jtbandes/swift,modocache/swift,austinzheng/swift,OscarSwanros/swift,emilstahl/swift,MukeshKumarS/Swift,nathawes/swift,adrfer/swift,tjw/swift,sschiau/swift,kstaring/swift,return/swift,russbishop/swift,amraboelela/swift,alblue/swift,jckarter/swift,swiftix/swift,lorentey/swift,kperryua/swift,tkremenek/swift,kperryua/swift,ben-ng/swift,shajrawi/swift,emilstahl/swift,OscarSwanros/swift,karwa/swift,zisko/swift,gregomni/swift,austinzheng/swift,modocache/swift,jckarter/swift,aschwaighofer/swift,frootloops/swift,harlanhaskins/swift,benlangmuir/swift,rudkx/swift,arvedviehweger/swift,shahmishal/swift,codestergit/swift,bitjammer/swift,tinysun212/swift-windows,slavapestov/swift,airspeedswift/swift,JaSpa/swift,SwiftAndroid/swift,kstaring/swift,tkremenek/swift,MukeshKumarS/Swift,zisko/swift,hooman/swift,codestergit/swift,OscarSwanros/swift,roambotics/swift,harlanhaskins/swift,deyton/swift,kusl/swift,arvedviehweger/swift,frootloops/swift,return/swift,MukeshKumarS/Swift,MukeshKumarS/Swift,jopamer/swift,jtbandes/swift,sschiau/swift,apple/swift,nathawes/swift,kusl/swift,devincoughlin/swift,codestergit/swift,nathawes/swift,modocache/swift,allevato/swift,emilstahl/swift,xedin/swift,gmilos/swift,Jnosh/swift,calebd/swift,khizkhiz/swift,sdulal/swift,swiftix/swift,kentya6/swift,practicalswift/swift,shahmishal/swift,karwa/swift,swiftix/swift.old,deyton/swift,frootloops/swift,hughbe/swift,calebd/swift,hughbe/swift,jtbandes/swift,zisko/swift,swiftix/swift,xedin/swift,SwiftAndroid/swift,atrick/swift,hooman/swift,parkera/swift,Jnosh/swift,ken0nek/swift,adrfer/swift,ben-ng/swift,modocache/swift,IngmarStein/swift,frootloops/swift,uasys/swift,alblue/swift,xwu/swift,therealbnut/swift,zisko/swift,airspeedswift/swift,kstaring/swift,devincoughlin/swift,deyton/swift,KrishMunot/swift,rudkx/swift,jmgc/swift,codestergit/swift,tjw/swift,shajrawi/swift,austinzheng/swift,frootloops/swift,khizkhiz/swift,JGiola/swift,emilstahl/swift,shajrawi/swift,natecook1000/swift,glessard/swift,jmgc/swift,dduan/swift,gmilos/swift,sschiau/swift,djwbrown/swift,practicalswift/swift,LeoShimonaka/swift,aschwaighofer/swift,kentya6/swift,tjw/swift,kperryua/swift,stephentyrone/swift,gribozavr/swift,adrfer/swift,frootloops/swift,ken0nek/swift,allevato/swift,karwa/swift,lorentey/swift,swiftix/swift.old,gmilos/swift,apple/swift,danielmartin/swift,JaSpa/swift,adrfer/swift,Ivacker/swift,roambotics/swift,JaSpa/swift,kentya6/swift,cbrentharris/swift,karwa/swift,djwbrown/swift,djwbrown/swift,rudkx/swift,shahmishal/swift,MukeshKumarS/Swift,amraboelela/swift,gottesmm/swift,Ivacker/swift,gmilos/swift,arvedviehweger/swift,jckarter/swift,tkremenek/swift,dduan/swift,therealbnut/swift,khizkhiz/swift,danielmartin/swift,kstaring/swift,uasys/swift,jmgc/swift,austinzheng/swift,adrfer/swift,ahoppen/swift,shahmishal/swift,ben-ng/swift,devincoughlin/swift,khizkhiz/swift,airspeedswift/swift,milseman/swift,therealbnut/swift,swiftix/swift.old,KrishMunot/swift,gribozavr/swift,practicalswift/swift,felix91gr/swift,CodaFi/swift,gribozavr/swift,uasys/swift,devincoughlin/swift,manavgabhawala/swift,glessard/swift,bitjammer/swift,tinysun212/swift-windows,SwiftAndroid/swift,sdulal/swift,tkremenek/swift,LeoShimonaka/swift,practicalswift/swift,aschwaighofer/swift,khizkhiz/swift,stephentyrone/swift,zisko/swift,jopamer/swift,return/swift,modocache/swift,ben-ng/swift,felix91gr/swift,jckarter/swift,manavgabhawala/swift,CodaFi/swift,glessard/swift,allevato/swift,harlanhaskins/swift,jtbandes/swift,russbishop/swift,SwiftAndroid/swift,emilstahl/swift,cbrentharris/swift,return/swift,swiftix/swift.old,jtbandes/swift,lorentey/swift,gregomni/swift,cbrentharris/swift,return/swift,roambotics/swift,deyton/swift,rudkx/swift,xedin/swift,Ivacker/swift,uasys/swift,LeoShimonaka/swift,sdulal/swift,dduan/swift