services: fix syntax error

src/www/services_dnsmasq_edit.php

@@ -247,7 +247,7 @@ include("head.inc");
 					                        </tr>
 					                        <?php
 					                          $counter = 0;
-					                          if(isset($pconfig['aliases']['item']) && is_array($pconfig['aliases']['item']))):
+					                          if (isset($pconfig['aliases']['item'])):
 					                            foreach($pconfig['aliases']['item'] as $item):
 					                              $host = $item['host'];
 					                              $domain = $item['domain'];