Merge pull request #25431 from batrick/i37540

luminous: mds: obsolete MDSMap option configs

Reviewed-by: Patrick Donnelly <pdonnell@redhat.com>
Reviewed-by:  Venky Shankar <vshankar@redhat.com>

diff --cc qa/tasks/cephfs/test_misc.py
Simple merge

diff --cc src/common/legacy_config_opts.h
Simple merge

diff --cc src/common/options.cc
Simple merge

diff --cc src/mon/FSCommands.cc
Simple merge