use the new sudo detection magic from remoto

Signed-off-by: Alfredo Deza <alfredo.deza@inktank.com>
remove the sudo checks in ceph-deploy

Signed-off-by: Alfredo Deza <alfredo.deza@inktank.com>
bump remoto requirement

Signed-off-by: Alfredo Deza <alfredo.deza@inktank.com>
Merge pull request #241 from alfredodeza/9565

smarter sudo detection