remove redundant check.
remove redundant check.

Swift SVN r22626

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