curl -i -X DELETE -L "https://api.box.net/2.0/users/12345/avatar" \
     -H "authorization: Bearer <ACCESS_TOKEN>"await client.avatars.deleteUserAvatar(user.id);client.avatars.delete_user_avatar(user.id)await client.Avatars.DeleteUserAvatarAsync(userId: user.Id);try await client.avatars.deleteUserAvatar(userId: user.id)client.getAvatars().deleteUserAvatar(user.getId())String userID = "33333";
BoxUser user = new BoxUser(api, userID);
user.deleteAvatar();client.user('33333').delete_avatar()bool isDeleted = await client.UsersManager.DeleteUserAvatarAsync(userId);client.users.deleteAvatar('22222', () => {
    console.log('User avatar deleted!'); 
});