Remove redundant comments
Remove redundant comments

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