remove an assigned DP from all applications - RESOLVED

Hi,

   I have just identified after our CMG was recreated a few weeks ago that the CMG DP has been added as an assigned DP for content on every application, driver package and package.  

Not sure how, but the point is, does anybody know how i can unassign cmg from everything ( apart from deleting and recreating the CMG?

I'd rather not have to open all applications one at a time and remove the cmg assignment from content. 

I know I can remove from CMG via the content tab in the properties of the CMG, but i still need to remove the assignment or I'm assuming they'll all just get copied back.