Fix nsISupportsArray for RDF datasources.

rdf/base/idl/nsIRDFDataSource.idl

@@ -17,13 +17,12 @@
  */
 
 #include "nsISupports.idl"
+#include "nsISupportsArray.idl"
 #include "nsIRDFResource.idl"
 #include "nsIRDFNode.idl"
 #include "nsIEnumerator.idl"
 #include "nsIRDFObserver.idl"
 
-// XXX Because this isn't really and interface :(
-[ptr] native nsISupportsArray(nsISupportsArray);
 %{C++
 #include "nsISupportsArray.h"
 %}