Override finishQueueMessage and finishDeleteMessage to do nothing in SQLQueue and SQLDict. Otherwise, messages are accumulated in RAM infinitely, due to RAMDict and RAMQueue.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@18755 20353a03-c40f-0410-a6d1-a30d3c3de9de