This reverts commit a967b9dd.

Reason for revert: Check if it's still the case.

Change-Id: Ib5496d6bc2ddfe1fedacc4f9c859ac56fc69726e

Background in [1].
Ubuntu uses pre 15.2.11 client and new 15.2.11 installs default that to false,
therefore not allowing Ubuntu clients to connect.

[1]: https://docs.ceph.com/en/latest/security/CVE-2021-20288/

Change-Id: Ic251b447026262eab4b406b8432cc009ca97ae82

Change-Id: I81a4f8f8b8faa7559740531bb16d8aec7fc23f9b