[Syntax] Remove unused 'SwitchUnknownLabel'
[Syntax] Remove unused 'SwitchUnknownLabel'

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