debugd: Drop unused trace_marker-test.conf

This job has no valid 'start on' condition and no references anywhere
else, so it must be unused.

This originated around b/35507927 and was made obsolete at
https://gerrit.chromium.org/gerrit/32998.

BUG=none
TEST=CQ

Change-Id: Ic8dd8e15d4973626bd445ca4eefce6a1e22fa97a
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/chromiumos-overlay/+/3811379
Commit-Queue: Brian Norris <briannorris@chromium.org>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Tested-by: Brian Norris <briannorris@chromium.org>
1 file changed