Revert changes in chainerx_cc/chainerx/cuda/cuda_device.cc
Revert changes in chainerx_cc/chainerx/cuda/cuda_device.cc

(cherry picked from commit 1a6031ace6200db96c27ae5119644e0da15297e5)

hvy/chainer,niboshi/chainer,niboshi/chainer,chainer/chainer,hvy/chainer,hvy/chainer,chainer/chainer,pfnet/chainer,niboshi/chainer,chainer/chainer,chainer/chainer,hvy/chainer,niboshi/chainer