Fixes: ceph#11076

Signed-off-by: Zengran Zhang <zhangzengran@h3c.com>
(cherry picked from commit 4d59b1d)

Conflicts:

	src/rgw/rgw_bucket.cc
            1. Do not use the rgw_user structure and remove the tenant parameter that describes as below
            2. user_id is not used so just remove the line
            3. instead of system_obj_set_attr you can use the method set_attr

Backport Change:
We do not use the rgw_user structure and remove the `tenant` parameter
because this feature is not introduced on hammer version.
The rgw multi-tenant feature is introduced on pr#6784 (ceph#6784)
This feature is supported from v10.0.2 and later version.