The libvirt log files can be quite large depending on the job run (into
the million line range). This means they take significant amounts of
time to index which backs up all the indexing. Lets remove these files
for now (mriedem, nova ptl, has said this won't be a great loss for
them) and if someone needs them indexed again they can help sort out how
to do it more quickly.
Change-Id: I6b567eaf8a59634bc2486423bd87553605bb9657