Fix double escaping sysname in device dependencies (librenms#16458)

I double checked that we aren't missing any escapes elsewhere on sysname and it looks good.

includes/html/forms/get-host-dependencies.inc.php

@@ -73,7 +73,7 @@
                     }
 
                     $hostname = format_hostname($myrow);
-                    $sysname = htmlspecialchars(($hostname == $myrow['sysName']) ? $myrow['hostname'] : $myrow['sysName']);
+                    $sysname = $hostname == $myrow['sysName'] ? $myrow['hostname'] : $myrow['sysName'];
                     array_push($res_arr, ['deviceid' => $myrow['id'], 'hostname' => $hostname, 'sysname' => $sysname, 'parent' => $parent, 'parentid' => $myrow['parentid']]);
                 }
                 $status = ['current' => $_POST['current'], 'rowCount' => $_POST['rowCount'], 'rows' => $res_arr, 'total' => $rec_count];