external contribution by Forlot Romain (claneys) This commit deletes "etcd_perf" files that could present if someone has ran a fio test under /var/lib/etcd like specified in the OpenShift docs about the recommended host practices. As this file is known as non essential, it could be freely deleted by anticipation by the restore pod when restoring a cluster to a previous state. https://github.com/openshift/cluster-etcd-operator/pull/823
*** This bug has been marked as a duplicate of bug 2088131 ***