NVMeoF gateway version is independent of ceph version
so 'ceph version' shows wrong nvmeof version in output
(i.e. instead of gateway version, it shows Ceph version).
Hence, remove nvmeof in 'ceph versions' output.

To check for gateway version, use 'gw info' command.

Signed-off-by: Vallari Agrawal <vallari.agrawal@ibm.com>
(cherry picked from commit 73c935db908d28cf65050535dc80c95a85bf49aa)