remove sorting from ssl 'issuer' as this data is being read from the certificate content and not the database/table and therefore cannot be sorted using the API, fixes #1116

Signed-off-by: Michael Kaufmann <d00p@froxlor.org>

lib/tablelisting/tablelisting.sslcertificates.php

@@ -49,6 +49,7 @@ return [
 				'label' => lng('ssl_certificates.issuer'),
 				'field' => 'issuer',
 				'searchable' => false,
+				'sortable' => false,
 			],
 			'c.validfromdate' => [
 				'label' => lng('ssl_certificates.valid_from'),