Remove unused format args
Remove unused format args

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