Remove a redundant assertion.
Remove a redundant assertion.

Swift SVN r29530

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