LU-6142 lod: remove custom macros in lod_qos.c

LU-6142 lod: remove custom macros in lod_qos.c

lod_qos.c redefines some common Lustre macros,
for use only in that file. This is not needed.
Replace these macros with the usual Lustre
macros instead. Remove some unused macros at
the same time.

There was some debug code under a '#if 0'.
Since enabling this requires a change to the
source code anyway, a potential debugger can
just re-add this code themselves if they
really need it.

Test-Parameters: trivial
Signed-off-by: Timothy Day <timday@amazon.com>
Change-Id: I1752eab59ce5792f1ca3e9f698bda370d9ac75b1
Reviewed-on: https://review.whamcloud.com/c/fs/lustre-release/+/51808
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: Neil Brown <neilb@suse.de>
Reviewed-by: Oleg Drokin <green@whamcloud.com>