message: Remove comment about obsolete call to allocate_persistent from spacetobatch_op.cc
diff: @@ -228,8 +228,6 @@ class SpaceToBatchOp : public OpKernel {
  OP_REQUIRES(
  context, block_size_ > 1,
  errors::InvalidArgument("Block size should be > 1: ", block_size_));
  - // We don't use context->allocate_persistent because the allocation must
  - // happen on the CPU regardless of Device.
  block_shape_ = Tensor(tensorflow::DT_INT64, TensorShape({2}));
  auto block_shape_vec = block_shape_.vec<int64>();
  block_shape_vec(0) = block_size_;
  