Cosmetic fix: omit unnecessary call redirection
Cosmetic fix: omit unnecessary call redirection

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