Children do not need sugary snacks in their diet. Sugar addicted kids grown up to be sugar addicted adults. Since your daughter already wants these foods, limit her access to them instead of withdrawing them altogether. Gradually try to get her to be satisfied with less and get more interested in healthy snacks. This is more about her future health rather than your current diet.
Maybe you could get her interested in baking her own healthy treats. Kids like to eat things they prepared themselves.