message: Update adam_gs_optimizer.py
diff: @@ -112,8 +112,6 @@ class AdamGSOptimizer(optimizer.Optimizer):
  self._beta2_t = None
  self._epsilon_t = None
  - # Created in SparseApply if needed.
  - self._updated_lr = None
  def _get_beta_accumulators(self):
  return (math_ops.pow(self._beta1_t, self._global_step_on_worker),
  