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