Revert "turn on debugging for MDS and Client in FS runs"

We want to apply debugging and whitelists, not one or the
other -- whoops!
This reverts commit cb1e8ed954c41840f28f5d88fd3fb58961cf309b.

Signed-off-by: Greg Farnum <greg@inktank.com>
temporarily add cephfs debugging to overrides

Signed-off-by: Greg Farnum <greg@inktank.com>