Remove empty package

git-svn-id: https://svn.apache.org/repos/asf/james/mailet/trunk@1460320 13f79535-47bb-0310-9956-ffa450edef68
remove empty package

git-svn-id: https://svn.apache.org/repos/asf/james/mailet/trunk@1460321 13f79535-47bb-0310-9956-ffa450edef68