back out part of previous patch to fix build bustage -didn't mean to include that

mailnews/imap/src/nsImapMailFolder.cpp

@@ -644,7 +644,7 @@ nsImapMailFolder::UpdateFolder(nsIMsgWindow *msgWindow)
     // can't file to the sent folder, so we don't add the filter for those servers
     if (canFileMessagesOnServer) 
     {
-      rv = server->ConfigureTemporaryFilters(m_filterList);
+      rv = server->ConfigureTemporaryReturnReceiptsFilter(m_filterList);
       NS_ASSERTION(NS_SUCCEEDED(rv), "failed to add MDN filter");
     }
   }

mailnews/local/src/nsParseMailbox.cpp

@@ -1458,7 +1458,7 @@ nsParseNewMailState::Init(nsIMsgFolder *rootFolder, nsIMsgFolder *downloadFolder
     rv = server->GetFilterList(aMsgWindow, getter_AddRefs(m_filterList));
   
   if (m_filterList)
-    rv = server->ConfigureTemporaryFilters(m_filterList);
+    rv = server->ConfigureTemporaryReturnReceiptsFilter(m_filterList);
   
   m_disableFilters = PR_FALSE;
   return NS_OK;