Once the last few instances of Greybox usage have been removed we can remove the assets.
Created attachment 184189 [details] [review] Bug 40422: Remove Greybox assets from the staff interface This patch removes the Greybox library from the staff interface templates and the include file which was used by templates calling Greybox. The patch also removes some Greybox stuff which should have been removed in Bug 16778. Sponsored-by: Athens County Public Libraries