The only product that I can think of that is similar to the OP's suggestion is Art and Arcana. That seemed to cover all of the bits and pieces IIRC. I can't think of them removing any. The may be changing some in current works, but that is different IMO. As far as I know they have not edit old products. They are still there and available, just with a content warning. So I haven't seen any removing that I can think of.The current WotC is moving toward removing depictions of certain creatures that are no longer considered socially acceptable. Any historical document should show the whole history, warts and all.