[stdlib] Remove stray global from OpenCL overlay.
[stdlib] Remove stray global from OpenCL overlay.

It was just intended to be a local testing tool and never should have
been committed.

Swift SVN r25802

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