src/Formio/Service/FormService.php
public function delete($path, Parameters $parameters = null)
    {
        $resource = str_replace('{path}', $path, static::RESOURCE_OBJECT_BY_PATH);
        $this->execute('DELETE', $resource);
    }
public function delete($path, Parameters $parameters = null)
    {
        $resource = str_replace('{path}', $path, static::RESOURCE_OBJECT_BY_PATH);
        $this->execute('DELETE', $resource);
    }
Delete form

@param string $path
@param \Ds\Component\Formio\Query\FormParameters $parameters