Avoid using _fallback_workarounds in SpectralNormalization
Avoid using _fallback_workarounds in SpectralNormalization

wkentaro/chainer,chainer/chainer,wkentaro/chainer,okuta/chainer,chainer/chainer,pfnet/chainer,hvy/chainer,chainer/chainer,hvy/chainer,chainer/chainer,wkentaro/chainer,okuta/chainer,hvy/chainer,niboshi/chainer,wkentaro/chainer,okuta/chainer,hvy/chainer,niboshi/chainer,niboshi/chainer,niboshi/chainer,okuta/chainer