staticGet for sub-Managed_DataObject classes now calls parent

The parent class for our database objects, Managed_DataObject, has a
dynamically assigned class in staticGet which objects get put into,
leaving us with less code to do the same thing.

We will probably have to move away from the DB_DataObject 'staticGet'
call as it is nowadays deprecated.

classes/Group_inbox.php

@@ -13,10 +13,6 @@ class Group_inbox extends Managed_DataObject
     public $notice_id;                       // int(4)  primary_key not_null
     public $created;                         // datetime()   not_null
 
-    /* Static get */
-
-    function staticGet($k,$v=NULL) { return Memcached_DataObject::staticGet('Group_inbox',$k,$v); }
-
     /* the code above is auto generated do not remove the tag below */
     ###END_AUTOCODE