Remove redundant argument
Remove redundant argument

chainer/chainer,jnishi/chainer,hvy/chainer,aonotas/chainer,anaruse/chainer,jnishi/chainer,hvy/chainer,jnishi/chainer,chainer/chainer,keisuke-umezawa/chainer,ktnyt/chainer,okuta/chainer,pfnet/chainer,ktnyt/chainer,okuta/chainer,chainer/chainer,tkerola/chainer,okuta/chainer,hvy/chainer,chainer/chainer,ktnyt/chainer,niboshi/chainer,keisuke-umezawa/chainer,keisuke-umezawa/chainer,niboshi/chainer,niboshi/chainer,niboshi/chainer,wkentaro/chainer,wkentaro/chainer,wkentaro/chainer,jnishi/chainer,keisuke-umezawa/chainer,hvy/chainer,rezoo/chainer,ktnyt/chainer,wkentaro/chainer,okuta/chainer,ronekko/chainer