Remove unnecessary `clear()`.
Remove unnecessary `clear()`.

rudkx/swift,benlangmuir/swift,apple/swift,gregomni/swift,glessard/swift,xwu/swift,ahoppen/swift,JGiola/swift,ahoppen/swift,xwu/swift,rudkx/swift,benlangmuir/swift,ahoppen/swift,JGiola/swift,rudkx/swift,gregomni/swift,glessard/swift,gregomni/swift,glessard/swift,ahoppen/swift,atrick/swift,glessard/swift,gregomni/swift,benlangmuir/swift,atrick/swift,gregomni/swift,atrick/swift,ahoppen/swift,benlangmuir/swift,benlangmuir/swift,xwu/swift,JGiola/swift,atrick/swift,roambotics/swift,atrick/swift,roambotics/swift,roambotics/swift,gregomni/swift,apple/swift,apple/swift,rudkx/swift,roambotics/swift,apple/swift,JGiola/swift,benlangmuir/swift,glessard/swift,rudkx/swift,roambotics/swift,JGiola/swift,roambotics/swift,JGiola/swift,xwu/swift,glessard/swift,xwu/swift,apple/swift,rudkx/swift,atrick/swift,apple/swift,xwu/swift,ahoppen/swift,xwu/swift