Match output dictionary of model.step, ignoring logits return var

[ghexp]

model.step returns five params (logits, loss, accuracy, norm, and update), so logits must be ignored otherwise error is generated (at least in Python 2.7.12):

Traceback (most recent call last):
  File "train.py", line 279, in <module>
    train(FLAGS)
  File "train.py", line 117, in train
    FLAGS.l, FLAGS.e, forward_only=False)
ValueError: too many values to unpack

[ghexp]

Fixed by removing logits return instead in latest commit.

[GokuMohandas]

Thank you! I was running it for nmt and noticed I forgot to change it back from testing something.