Revert "Fixes ispconfig/ispconfig3#3943"

A. Täffner

2016-06-14 b8942a6e3ac3786d82d4ab5f1c340028c29e9d62

 interface/lib/classes/aps_crawler.inc.php

@@ -460,6 +460,7 @@
               }
            }
            //var_dump($apps);
            //echo print_r($apps_to_dl).'<br>-------------------<br>';

            // For memory reasons, unset the current vendor and his apps
            unset($apps);