SIL Linker: Remove unnecessary code from visit{Apply,PartialApply}Inst()
SIL Linker: Remove unnecessary code from visit{Apply,PartialApply}Inst()

We already handle linking functions in as part of the function_ref;
no need to repeat the same logic in apply and partial_apply.

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