LU-12610 obd: remove OBD_ -> CFS_ macros

LU-12610 obd: remove OBD_ -> CFS_ macros

Remove OBD macros that are simply redefinitions
of CFS macros.

Signed-off-by: Timothy Day <timday@amazon.com>
Signed-off-by: Ben Evans <beevans@whamcloud.com>
Change-Id: Id9e312a6074c5e11370f018afd3201d73b53e7e0
Reviewed-on: https://review.whamcloud.com/c/fs/lustre-release/+/50808
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Reviewed-by: Arshad Hussain <arshad.hussain@aeoncomputing.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>