LU-8191 lustre: convert lmv,lod,lov functions to static

LU-8191 lustre: convert lmv,lod,lov functions to static

Static analysis shows that a number of functions
could be made static. This patch declares several
functions in lmv, lod, and lov static.

Also, remove one unused function: lov_lsm_entry()

Another function is intentionally unused for
debugging purposes. It was detected by static
analysis, but it has been left untouched.

Lustre-change: https://review.whamcloud.com/51479
Lustre-commit: 78605b74a56a5338aa93bbf394fe35d0f7c17c5b

Test-Parameters: trivial
Signed-off-by: Timothy Day <timday@amazon.com>
Change-Id: If409226ea201587c7f95d4a65ffaef72671b5ac2
Reviewed-on: https://review.whamcloud.com/c/ex/lustre-release/+/54627
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>