code: def remove_choice(self, choice_id, inline_region):
          
          if inline_region in self.my_osid_object_form._my_map['choices']:
              updated_choices = []
              for choice in self.my_osid_object_form._my_map['choices'][inline_region]:
                  if choice['id'] != choice_id:
                      updated_choices.append(choice)
              self.my_osid_object_form._my_map['choices'][inline_region] = updated_choices
docs: remove a choice, given the id