PMCORE-1323 Remove the possibility of change the memory_limit

thirdparty/phing/Phing.php

@@ -1111,12 +1111,6 @@ class Phing {
         ini_set('default_charset', 'iso-8859-1');
         ini_set('register_globals', 'off');
         ini_set('allow_call_time_pass_reference', 'on');
-        
-        // should return memory limit in MB  
-        $mem_limit = (int) ini_get('memory_limit');
-        if ($mem_limit < 32) {
-            ini_set('memory_limit', '32M'); // nore: this may need to be higher for many projects
-        }        
     }
 
     /**