Craft\Formerly_SubmissionsController::actionDeleteSubmission PHP Method

    public function actionDeleteSubmission()
    {
        $this->requireAjaxRequest();
        $submissionId = craft()->request->getRequiredPost('submissionId');
        $ok = craft()->formerly_submissions->deleteSubmissionById($submissionId);
        $this->returnJson(array('ok' => $ok));
    }