I’ve done the same thing just being absent minded. Removing the nail is something that’d probably have happened either way after it’s detached. It won’t grow, a new one should start from under it, and the dead one will just be an annoying hard thing hanging on to what ever skin is left attached. If part of it is still somehow stuck to the bed, it’s usually better to pull it out unless the majority is fine.

It took several months to grow a new big toe nail and it still feels funny (overly sensitive) to this day.