Dewclaws according to the sheltie standard should be removed on the rear legs if present and can be optionally removed on the front.
Justice and Ember have their front dewclaws, Diva does not. Justice had double dewclaws on the rear that were removed at 3 days, Ember didn't have any dewclaws on the rear, Diva had single dewclaws removed from her rear legs at 3 days.
I personally never recommend removing front dewclaws in adults.