/**
* Check and remove outdated certificate file by website
*
* @return void
*/
protected function _removeOutdatedCertFile()
{
$pattern = sprintf('cert_%s*', $this->getWebsiteId());
$entries = $this->varDirectory->search($pattern, self::BASEPATH_PAYPAL_CERT);
foreach ($entries as $entry) {
$this->varDirectory->delete($entry);
}
}
