update ppo

xt/model/ppo/ppo_ms.py

@@ -144,7 +144,6 @@ def __init__(self, net, loss_fn, dist):
  def construct(self, state_ph, adv_ph, old_logp_ph, behavior_action, target_v, old_v_ph):
  pi_latent, v_out = self.net(state_ph)
  ent = self.dist.entropy(pi_latent)
- pi_latent = pi_latent.astype(ms.float16)
  action_log_prob = self.dist.log_prob(behavior_action, pi_latent)
  loss = self._loss_fn(action_log_prob, ent, adv_ph, old_logp_ph, target_v, v_out, old_v_ph)
  return loss