[NFC] Simplify DenseMapInfo<SimpleValue>::isEqual in CSE
[NFC] Simplify DenseMapInfo<SimpleValue>::isEqual in CSE

It is not correct to check if we support ownership rauwing of values in
the isEqual method. Move it to a later point in CSE

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