Revert "test: reproduce flap peering bug (wip)"

Revert "test: reproduce flap peering bug (wip)"

This reverts commit c89f9c4e80a4ac45ae5ea86ea7e9c41999299f27.

Note from Dan van der Ster:
This is a test that should succeed,
it definitely used to succeed back in the L/O days of Ceph. At some
point peering code changed and this behaviour regressed. In short,
an OSD goes down then comes up, and no objects were modified in the mean time.
There should be no degraded PGs in this case.

As this commit is currently breaking make check on all PRs, I think it should
be re-evaluated and merged so whatever fix is needed along with this test to
make it work are merged together.

Fixes: https://tracker.ceph.com/issues/66556
Signed-off-by: Laura Flores <lflores@ibm.com>