How to delete a panel in rviz

edit

I have tried to use window_manager_interface to delete the panel. But there are two versions of window_manager_interface. And when I was compelling, it failed.

So I am wondering who can tell me how to delete a panel in the Rviz. Using which class?

I want to delete a panel in Rviz. I was using deletepan() in window_manager_interface. However, there are two versions of window_manager_interface.

I am wondering how to delete a panel. And using which class?