Base::removeByEntity

protected function removeByEntity(MainEntityBase $entity, $primary)
{
	/** @var BitrixMainEntityDataManager $className Class name. */
	$className = $entity->getDataClass();
	$result = $className::delete($primary);

	if(!$result->isSuccess())
	{
		$this->errors->add($result->getErrors());
	}

	return !$this->hasErrors();
}