not anymore needed repository

git-svn-id: https://svn.apache.org/repos/asf/archiva/trunk@1491729 13f79535-47bb-0310-9956-ffa450edef68
add codehaus mojo snapshot repository

git-svn-id: https://svn.apache.org/repos/asf/archiva/trunk@1491730 13f79535-47bb-0310-9956-ffa450edef68