restore model at the end of `__train_pruned_model`

[as754770178]

I want to know why restore model at the end of __train_pruned_model, because no operation after this.

def __calc_grads_pruned(self, grads_origin):
  ......

  if self.__is_primary_worker():
    with self.pruner.model.g.as_default():
      self.pruner.saver = tf.train.Saver()
      # restore pruner model
      self.pruner.saver.restore(self.pruner.model.sess, self.max_save_path)

[jiaxiang-wu]

Yes, this is redundant and can be removed. Thanks for pointing it out.