Bug 605726 - Remove the XMLSinkObserver to avoid leaking. r=pike a=test-only

--HG--
extra : rebase_source : f17fdd007749d55a18f27934f7fa5e82e12bc655

rdf/tests/unit/test_rdfredirect.js

@@ -67,6 +67,8 @@ rdfLoadObserver.prototype =
     }
       
     gPending -= 1;
+      
+    this.ds.removeXMLSinkObserver(this);
 
     if (gPending == 0) {
       do_test_pending();