Merge pull request #49020 from xxhdx1985126/wip-pg-remove

crimson/osd: implement pg removal

Reviewed-by: Yingxin Cheng <yingxin.cheng@intel.com>
Reviewed-by: Samuel Just <sjust@redhat.com>

diff --cc src/crimson/os/seastore/object_data_handler.cc
Simple merge

diff --cc src/crimson/os/seastore/seastore.cc
Simple merge

diff --cc src/crimson/osd/pg.cc
Simple merge

diff --cc src/crimson/osd/pg.h
Simple merge

diff --cc src/test/crimson/seastore/test_seastore.cc
Simple merge