removed an unnecessary line
removed an unnecessary line

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