scylla_cpuset_setup: rm perftune.yaml
scylla_cpuset_setup: rm perftune.yaml

scylla_setup resets our configuration and perftune.yaml is a part of it.
perftune.yaml is generated based on the contents of cpuset.conf therefore we should reset
these together.

Signed-off-by: Vlad Zolotarov <976c0f8d0852ed6439ad273880b400a75a7c41d0@scylladb.com>

scylladb/scylla,scylladb/scylla,avikivity/scylla,duarten/scylla,scylladb/scylla,avikivity/scylla,scylladb/scylla,duarten/scylla,duarten/scylla,avikivity/scylla