void setFocusedComponent(Component newFocusedComponet) {
		// remember it so we can restore it later when necessary
		lastFocusedComponent = newFocusedComponet;
	}
Notifies the header that an action was removed.
@param action the action that was removed.
Ghidra/Framework/Docking/src/main/java/docking/DockableComponent.java