How to remove the limit on video memory? (Doom Eternal)

I have a GTX 1060 3Gb, I know that the card is not powerful, but really want to put everything on ultra in FullHD, is now offered everything on ultra nightmare, except for the textures, they are minimal, t..K of memory will need more than 3 Gb. Sure it's an artificial constraint, because the remaster of resident evil 2 works fine, even with the large shortage of video memory