WordPress MU

I have a question, how can I hide widgets from Editors? With the old Wordpress you could use the function:

unregister_widget_control ( string name )

This function would de-activate the widget, which would be then hidden in every wordpress MU version < 2.7. With the new update the widgets would still be de-activated, but are placed under the header 'Inactive Widgets' and the Editor or blogger could then re-activate the widget.

How can I make these widgets hidden again?

Could someone look at this? Thnx!

look at this post:
http://wordpress.org/support/topic/281962?replies=2

Thanks, but for me it doesn't solved the problem. The widgets are still shown in the inactive widgets bar, so users can just re-activate them again.

You want to be using wp_unregister_sidebar_widget not just unregister_widget_control

thnx will try!

same results, in the admin panel, users can still re-activate the widgets from the 'Inactive Widgets' bar and default widgets are shown as both Inactive as Active.