Those are just the cotyledons, baby leaves that always fall off/die. So long as the new leaves look fine, you should be good.
Ok that makes me feel a lot better. I never heard of cotyledons, time to do more research! should i just pull those leaves off of let them be
I don't think it matters one way or the other but personally I'd leave them and let nature take its course.
I agree with cranegame, they usually fall off by the time the second or third set of true leaves start to show up.
I'd leave them and let them fall off; or crust up before I pulled them.your plant will thank you for it.