Hey there! First, head over to the Apparel (Accessories) Shop. Click on Feather, the shop worker, and she’ll ask if you want to purchase any accessories- type “yes” in the box.
Next, she’ll ask what type of accessory you want (Head, Neck, etc.). Choose one by selecting the corresponding number. Once you’ve made your choice, you’ll see an option to “Remove Accessories” click that, and voilà! It should be gone :)