Omit unnecessary return statement
Omit unnecessary return statement

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