Simplify the code
Simplify the code

keisuke-umezawa/chainer,AlpacaDB/chainer,hvy/chainer,jnishi/chainer,ktnyt/chainer,anaruse/chainer,1986ks/chainer,tkerola/chainer,nushio3/chainer,chainer/chainer,chainer/chainer,wkentaro/chainer,sinhrks/chainer,wkentaro/chainer,delta2323/chainer,truongdq/chainer,wavelets/chainer,kuwa32/chainer,ytoyama/yans_chainer_hackathon,okuta/chainer,chainer/chainer,ttakamura/chainer,muupan/chainer,laysakura/chainer,niboshi/chainer,cupy/cupy,tigerneil/chainer,tscohen/chainer,cupy/cupy,masia02/chainer,Kaisuke5/chainer,keisuke-umezawa/chainer,jnishi/chainer,minhpqn/chainer,cupy/cupy,okuta/chainer,jnishi/chainer,nushio3/chainer,okuta/chainer,cemoody/chainer,ktnyt/chainer,pfnet/chainer,ktnyt/chainer,truongdq/chainer,rezoo/chainer,keisuke-umezawa/chainer,keisuke-umezawa/chainer,ysekky/chainer,aonotas/chainer,t-abe/chainer,sinhrks/chainer,sou81821/chainer,jnishi/chainer,yanweifu/chainer,hidenori-t/chainer,tereka114/chainer,jfsantos/chainer,kikusu/chainer,kashif/chainer,hvy/chainer,niboshi/chainer,ronekko/chainer,muupan/chainer,bayerj/chainer,niboshi/chainer,woodshop/chainer,okuta/chainer,benob/chainer,wkentaro/chainer,hvy/chainer,chainer/chainer,hvy/chainer,wkentaro/chainer,kikusu/chainer,benob/chainer,umitanuki/chainer,niboshi/chainer,ikasumi/chainer,cupy/cupy,AlpacaDB/chainer,elviswf/chainer,kiyukuta/chainer,t-abe/chainer,ktnyt/chainer,ttakamura/chainer,woodshop/complex-chainer