Cashew: HACK Temporarily Disable AggregatorTest.TrimOld

The AggregatorTest.TrimOld has been failing on amd64-generic, no immediate
CL appears to be the cause to allow for easy reversion. This CL temporarily
disables the unit test while this is under investigation.

BUG=chromium-os:27657
TEST=Manual, verify that FEATURES="test" emerge-amd64-generic cashew
    is successfull.

Change-Id: I1267c589c92336866bd19598492952ba3403dd85
Reviewed-on: https://gerrit.chromium.org/gerrit/17847
Reviewed-by: Bernie Thompson <bhthompson@chromium.org>
Tested-by: Bernie Thompson <bhthompson@chromium.org>
Commit-Ready: Bernie Thompson <bhthompson@chromium.org>
1 file changed