Remove unused statement
Remove unused statement

ktnyt/chainer,delta2323/chainer,niboshi/chainer,ronekko/chainer,aonotas/chainer,anaruse/chainer,cupy/cupy,niboshi/chainer,jnishi/chainer,keisuke-umezawa/chainer,hvy/chainer,jnishi/chainer,kiyukuta/chainer,chainer/chainer,hvy/chainer,hvy/chainer,okuta/chainer,wkentaro/chainer,keisuke-umezawa/chainer,ktnyt/chainer,kashif/chainer,cupy/cupy,keisuke-umezawa/chainer,okuta/chainer,tkerola/chainer,okuta/chainer,hvy/chainer,ktnyt/chainer,chainer/chainer,ktnyt/chainer,ysekky/chainer,niboshi/chainer,niboshi/chainer,wkentaro/chainer,cupy/cupy,cupy/cupy,wkentaro/chainer,okuta/chainer,jnishi/chainer,keisuke-umezawa/chainer,rezoo/chainer,chainer/chainer,jnishi/chainer,wkentaro/chainer,pfnet/chainer,chainer/chainer