why set actor_rollout_ref.actor.loss_remove_clip=True ？

when set actor_rollout_ref.actor.loss_remove_clip=True，there is no clip in the on policy part，why？

<img width="987" height="293" alt="Image" src="https://github.com/user-attachments/assets/7f22a51c-8012-41e4-ad6a-c2f11e5ce558" />