remove non used variable

git-svn-id: https://svn.apache.org/repos/asf/archiva/trunk@1539519 13f79535-47bb-0310-9956-ffa450edef68
use zero copy transfer for huge maven index

git-svn-id: https://svn.apache.org/repos/asf/archiva/trunk@1539520 13f79535-47bb-0310-9956-ffa450edef68