LU-16585 build: remove python2 dependencies

LU-16585 build: remove python2 dependencies

Fixed packaging issue casued by scripts and control files.

Test-Parameters: trivial
Signed-off-by: Alex Deiter <alex.deiter@gmail.com>
Change-Id: I6c9b24bf811269928494af17c15627902e5fe27b
Reviewed-on: https://review.whamcloud.com/c/fs/lustre-release/+/50084
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Patrick Farrell <pfarrell@whamcloud.com>
Reviewed-by: Feng Lei <flei@whamcloud.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>