[INTERNAL] deleted utility tool for statistic aggregation

This is not production code. I will put the rewritten code
into our internal GIT script repo.

Change-Id: Iec97bf368610ff89fb0daa219c50fc0c33efde5e
Reviewed-on: http://saros-build.imp.fu-berlin.de/gerrit/1389
Tested-by: Jenkins CI
Reviewed-by: Stefan Rossbach <srossbach@arcor.de>