ClangImporter: Remove some unnecessary (void) getInterfaceType() calls
ClangImporter: Remove some unnecessary (void) getInterfaceType() calls

karwa/swift,rudkx/swift,apple/swift,tkremenek/swift,JGiola/swift,CodaFi/swift,harlanhaskins/swift,hooman/swift,harlanhaskins/swift,gribozavr/swift,benlangmuir/swift,tkremenek/swift,tkremenek/swift,jckarter/swift,rudkx/swift,CodaFi/swift,stephentyrone/swift,atrick/swift,jckarter/swift,hooman/swift,ahoppen/swift,parkera/swift,gribozavr/swift,JGiola/swift,gribozavr/swift,gregomni/swift,harlanhaskins/swift,benlangmuir/swift,roambotics/swift,glessard/swift,lorentey/swift,nathawes/swift,ahoppen/swift,allevato/swift,tkremenek/swift,jmgc/swift,aschwaighofer/swift,karwa/swift,roambotics/swift,rudkx/swift,rudkx/swift,hooman/swift,benlangmuir/swift,karwa/swift,jckarter/swift,xwu/swift,roambotics/swift,atrick/swift,aschwaighofer/swift,ahoppen/swift,jmgc/swift,gribozavr/swift,CodaFi/swift,lorentey/swift,allevato/swift,ahoppen/swift,atrick/swift,jckarter/swift,benlangmuir/swift,JGiola/swift,nathawes/swift,airspeedswift/swift,jmgc/swift,gregomni/swift,atrick/swift,lorentey/swift,jmgc/swift,karwa/swift,allevato/swift,lorentey/swift,CodaFi/swift,harlanhaskins/swift,airspeedswift/swift,rudkx/swift,hooman/swift,roambotics/swift,ahoppen/swift,jmgc/swift,tkremenek/swift,glessard/swift,harlanhaskins/swift,JGiola/swift,parkera/swift,airspeedswift/swift,jckarter/swift,apple/swift,airspeedswift/swift,jmgc/swift,aschwaighofer/swift,lorentey/swift,allevato/swift,hooman/swift,nathawes/swift,stephentyrone/swift,atrick/swift,rudkx/swift,karwa/swift,xwu/swift,hooman/swift,parkera/swift,aschwaighofer/swift,lorentey/swift,gribozavr/swift,aschwaighofer/swift,apple/swift,karwa/swift,xwu/swift,parkera/swift,parkera/swift,nathawes/swift,xwu/swift,apple/swift,nathawes/swift,lorentey/swift,gregomni/swift,allevato/swift,harlanhaskins/swift,glessard/swift,tkremenek/swift,gregomni/swift,lorentey/swift,apple/swift,glessard/swift,benlangmuir/swift,stephentyrone/swift,JGiola/swift,stephentyrone/swift,roambotics/swift,roambotics/swift,airspeedswift/swift,gregomni/swift,parkera/swift,stephentyrone/swift,stephentyrone/swift,allevato/swift,benlangmuir/swift,jmgc/swift,xwu/swift,glessard/swift,atrick/swift,xwu/swift,CodaFi/swift,jckarter/swift,nathawes/swift,JGiola/swift,nathawes/swift,glessard/swift,karwa/swift,gregomni/swift,xwu/swift,tkremenek/swift,harlanhaskins/swift,gribozavr/swift,airspeedswift/swift,gribozavr/swift,allevato/swift,aschwaighofer/swift,aschwaighofer/swift,karwa/swift,parkera/swift,parkera/swift,stephentyrone/swift,gribozavr/swift,hooman/swift,CodaFi/swift,apple/swift,airspeedswift/swift,ahoppen/swift,CodaFi/swift,jckarter/swift