Revert "[stdlib] Workarounds for <rdar://18992875>"
Revert "[stdlib] Workarounds for <rdar://18992875>"

This reverts commit r23361 now that Joe fixed the problem

Swift SVN r23388

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