Latest commit b1c3222 Dec 8, 2017 @MarkDaoust MarkDaoust committed with tensorflower-gardener Use sparse loss to avoid the warning being thrown by tf.nn.softmax_cr…
…oss_entopy.

Part 1 - Mnist

`tf.nn.softmax_cross_entropy_with_logits` and `tf.losses.softmax_cross_entropy` both throw the warning.

Almost everywhere it's used can simply be replaced by `tf.losses.sparse_softmax_cross_entropy`

PiperOrigin-RevId: 178271941