Remove Swift 3 compat code from getForeignRepresentable().
Remove Swift 3 compat code from getForeignRepresentable().

apple/swift,stephentyrone/swift,glessard/swift,gribozavr/swift,xedin/swift,allevato/swift,jopamer/swift,nathawes/swift,aschwaighofer/swift,harlanhaskins/swift,JGiola/swift,parkera/swift,jckarter/swift,benlangmuir/swift,xwu/swift,xedin/swift,natecook1000/swift,jopamer/swift,natecook1000/swift,karwa/swift,parkera/swift,gregomni/swift,aschwaighofer/swift,JGiola/swift,aschwaighofer/swift,jopamer/swift,harlanhaskins/swift,roambotics/swift,practicalswift/swift,gregomni/swift,amraboelela/swift,stephentyrone/swift,aschwaighofer/swift,danielmartin/swift,danielmartin/swift,JGiola/swift,shajrawi/swift,practicalswift/swift,apple/swift,airspeedswift/swift,xwu/swift,xwu/swift,nathawes/swift,practicalswift/swift,jmgc/swift,rudkx/swift,natecook1000/swift,CodaFi/swift,sschiau/swift,jckarter/swift,stephentyrone/swift,alblue/swift,CodaFi/swift,shahmishal/swift,gregomni/swift,lorentey/swift,parkera/swift,shajrawi/swift,shahmishal/swift,danielmartin/swift,karwa/swift,aschwaighofer/swift,JGiola/swift,lorentey/swift,jmgc/swift,ahoppen/swift,JGiola/swift,danielmartin/swift,sschiau/swift,natecook1000/swift,atrick/swift,apple/swift,practicalswift/swift,sschiau/swift,tkremenek/swift,alblue/swift,tkremenek/swift,sschiau/swift,xwu/swift,stephentyrone/swift,hooman/swift,jopamer/swift,lorentey/swift,xedin/swift,lorentey/swift,CodaFi/swift,gribozavr/swift,stephentyrone/swift,roambotics/swift,gregomni/swift,natecook1000/swift,stephentyrone/swift,atrick/swift,roambotics/swift,lorentey/swift,jckarter/swift,hooman/swift,hooman/swift,parkera/swift,airspeedswift/swift,amraboelela/swift,devincoughlin/swift,sschiau/swift,ahoppen/swift,harlanhaskins/swift,lorentey/swift,devincoughlin/swift,roambotics/swift,amraboelela/swift,JGiola/swift,roambotics/swift,rudkx/swift,parkera/swift,xwu/swift,austinzheng/swift,glessard/swift,glessard/swift,practicalswift/swift,shahmishal/swift,allevato/swift,hooman/swift,rudkx/swift,xedin/swift,nathawes/swift,jmgc/swift,jmgc/swift,austinzheng/swift,devincoughlin/swift,practicalswift/swift,gribozavr/swift,shahmishal/swift,hooman/swift,stephentyrone/swift,CodaFi/swift,xedin/swift,devincoughlin/swift,shahmishal/swift,harlanhaskins/swift,CodaFi/swift,benlangmuir/swift,xwu/swift,apple/swift,alblue/swift,amraboelela/swift,karwa/swift,allevato/swift,karwa/swift,aschwaighofer/swift,shajrawi/swift,parkera/swift,glessard/swift,austinzheng/swift,karwa/swift,roambotics/swift,alblue/swift,benlangmuir/swift,airspeedswift/swift,sschiau/swift,gribozavr/swift,sschiau/swift,benlangmuir/swift,rudkx/swift,gribozavr/swift,atrick/swift,danielmartin/swift,nathawes/swift,jckarter/swift,ahoppen/swift,practicalswift/swift,gregomni/swift,aschwaighofer/swift,brentdax/swift,shajrawi/swift,tkremenek/swift,danielmartin/swift,karwa/swift,jckarter/swift,glessard/swift,tkremenek/swift,harlanhaskins/swift,shajrawi/swift,xedin/swift,brentdax/swift,airspeedswift/swift,allevato/swift,jckarter/swift,tkremenek/swift,practicalswift/swift,jopamer/swift,brentdax/swift,hooman/swift,apple/swift,tkremenek/swift,natecook1000/swift,atrick/swift,atrick/swift,jmgc/swift,shajrawi/swift,nathawes/swift,brentdax/swift,jmgc/swift,alblue/swift,tkremenek/swift,karwa/swift,sschiau/swift,jopamer/swift,glessard/swift,brentdax/swift,shajrawi/swift,amraboelela/swift,xwu/swift,parkera/swift,xedin/swift,xedin/swift,shahmishal/swift,austinzheng/swift,allevato/swift,brentdax/swift,devincoughlin/swift,benlangmuir/swift,austinzheng/swift,hooman/swift,danielmartin/swift,allevato/swift,karwa/swift,apple/swift,CodaFi/swift,rudkx/swift,austinzheng/swift,amraboelela/swift,airspeedswift/swift,devincoughlin/swift,harlanhaskins/swift,shahmishal/swift,devincoughlin/swift,gribozavr/swift,alblue/swift,ahoppen/swift,airspeedswift/swift,gribozavr/swift,gribozavr/swift,rudkx/swift,alblue/swift,jmgc/swift,ahoppen/swift,austinzheng/swift,allevato/swift,ahoppen/swift,brentdax/swift,airspeedswift/swift,jopamer/swift,natecook1000/swift,lorentey/swift,nathawes/swift,parkera/swift,shajrawi/swift,gregomni/swift,jckarter/swift,shahmishal/swift,atrick/swift,amraboelela/swift,harlanhaskins/swift,benlangmuir/swift,CodaFi/swift,devincoughlin/swift,nathawes/swift,lorentey/swift