Remove IsPointerCudaMemory check.Caller must assure src_ptr reside in the main RAM
Remove IsPointerCudaMemory check.Caller must assure src_ptr reside in the main RAM

keisuke-umezawa/chainer,chainer/chainer,ktnyt/chainer,pfnet/chainer,jnishi/chainer,wkentaro/chainer,hvy/chainer,wkentaro/chainer,jnishi/chainer,niboshi/chainer,chainer/chainer,okuta/chainer,okuta/chainer,hvy/chainer,okuta/chainer,keisuke-umezawa/chainer,hvy/chainer,niboshi/chainer,jnishi/chainer,wkentaro/chainer,wkentaro/chainer,chainer/chainer,keisuke-umezawa/chainer,niboshi/chainer,chainer/chainer,keisuke-umezawa/chainer,ktnyt/chainer,ktnyt/chainer,niboshi/chainer,hvy/chainer,okuta/chainer,jnishi/chainer,ktnyt/chainer,tkerola/chainer