Revert "Buffer.BlockCopy optimization for arrays of same type"
Revert "Buffer.BlockCopy optimization for arrays of same type"

tijoytom/corert,mjp41/corert,gregkalapos/corert,tijoytom/corert,shrah/corert,yizhang82/corert,yizhang82/corert,gregkalapos/corert,sandreenko/corert,shrah/corert,mjp41/corert,botaberg/corert,botaberg/corert,krytarowski/corert,tijoytom/corert,mjp41/corert,botaberg/corert,sandreenko/corert,mjp41/corert,krytarowski/corert,shrah/corert,shrah/corert,botaberg/corert,krytarowski/corert,sandreenko/corert,yizhang82/corert,sandreenko/corert,krytarowski/corert,yizhang82/corert,kyulee1/corert,gregkalapos/corert,kyulee1/corert,kyulee1/corert,mjp41/corert,gregkalapos/corert,kyulee1/corert,tijoytom/corert