I agree with jw, I would not have sold that frame.... For now, put that frame against the hive wall and have them draw comb from the far side, assuming it's nice and straight. When it is warm enough always put the new comb to be drawn in between the best / straightest 2 combs. When it is still too chilly put the new, to be drawn, comb on the very edge of the brood nest, but again, put it next to the best comb possible. They will use the old comb as a template so use that to your advantage. "Always" feed a new colony that is drawing comb if they will take feed. When the box is mostly full you can mess with that winky comb but I would only scrape it off if it is completely empty (no nectar, pollen, brood) because it's a new colony and you want them to build as quickly as possible. It looks like it's drone comb. Consider giving them an empty frame (no foundation) for them to draw natural comb in. They will likely draw some drone comb which you can leave them to reduce funky burr comb.... Have fun!