osd: Remove unused PG functions queue_notify(), queue_info(), queue_log()

Signed-off-by: David Zafman <dzafman@redhat.com>
osd: Return EOPNOTSUPP if a set-alloc-hint occurs with OSDs that don't support

Add CEPH_FEATURE_OSD_SET_ALLOC_HINT feature bit
Collect the intersection of all peer feature bits during peering
When handling CEPH_OSD_OP_SETALLOCHINT check that all OSDs support it
by checking for CEPH_FEATURE_OSD_SET_ALLOC_HINT feature bit.

Fixes: #9419
Backport: firefly

Signed-off-by: David Zafman <dzafman@redhat.com>
Merge pull request #2543 from ceph/wip-9419

Wip 9419

Reviewed-by: Samuel Just <sam.just@inktank.com>