System: Trust: Certificates : replace removeAttr usage to deselect option, although it probably still works with the single item selection, we better use the same construct as in system_advanced_admin.php
System: Trust: Certificates : replace removeAttr usage to deselect option, although it probably still works with the single item selection, we better use the same construct as in system_advanced_admin.php

opnsense/core,opnsense/core,opnsense/core,opnsense/core,opnsense/core,opnsense/core