(legacy) remove isAjax()

src/www/system_groupmanager_addprivs.php

@@ -75,12 +75,6 @@ if ($_POST) {
 
     do_input_validation($_POST, $reqdfields, $reqdfieldsn, $input_errors);
 
-    /* if this is an AJAX caller then handle via JSON */
-    if (isAjax() && is_array($input_errors)) {
-        input_errors2Ajax($input_errors);
-        exit;
-    }
-
     if (!$input_errors) {
         if (!is_array($pconfig['sysprivs'])) {
             $pconfig['sysprivs'] = array();