ceph: remove devicesInUse
ceph: remove devicesInUse

When the OSDs are being provisioned,
if one cluster has already provisioned the OSDs,
the new cluster will skip them since it will see they are already in use.
So we don't need this check anymore.
Coordinating the flag across multiple cluster instances is more complicated than it's worth.
Someone also might want useAllDevices: true in multiple clusters
and they would keep them on separate nodes by using the node labels and selectors.

Closes: https://github.com/rook/rook/issues/4633
Signed-off-by: Sébastien Han <62d754cc350e84d3b1c32ae79f976f5348e74a40@redhat.com>

rook/rook,rook/rook,rook/rook,rook/nfs,rook/nfs,rook/rook,rook/rook,rook/nfs