Form_Manager::maybe_delete_form_subcomponents( int $post_id )

	protected function maybe_delete_form_subcomponents( $post_id ) {
		$form = $this->get( $post_id );
		if ( ! $form ) {
			return;
		}

		$containers = $form->get_containers();
		foreach ( $containers as $container ) {
			$container->delete();
		}

		$submissions = $form->get_submissions();
		foreach ( $submissions as $submission ) {
			$submission->delete();
		}
	}