Merge pull request #8214 from athanatos/wip-feature-bits

Deprecate or free up a bunch of feature bits

Reviewed-by: Sage Weil <sage@redhat.com>

diff --cc src/ceph_osd.cc
Simple merge

diff --cc src/osd/PG.cc
Simple merge

diff --cc src/osd/ReplicatedPG.cc
Simple merge

diff --cc src/osd/osd_types.cc
Simple merge