LU-16585 build: remove python2 dependencies

LU-16585 build: remove python2 dependencies

Fixed packaging issue casued by scripts and control files.

Lustre-change: https://review.whamcloud.com/50084
Lustre-commit: TBD (from a9af6b4a1c3a97f5e41074d6a05e87908daf8cf9)

Test-Parameters: trivial
Signed-off-by: Alex Deiter <alex.deiter@gmail.com>
Change-Id: I6c9b24bf811269928494af17c15627902e5fe27b
Reviewed-on: https://review.whamcloud.com/c/ex/lustre-release/+/50078
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: Patrick Farrell <pfarrell@whamcloud.com>
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>