07f5001 Remove the mbs/find-unsigned-modules.py script.

Authored and Committed by cverna 4 years ago
    Remove the mbs/find-unsigned-modules.py script.
    
    This script seems to be using pungi API that are not available anymore
    this leads me to think that this is script is used.
    
    Signed-off-by: Clement Verna <cverna@tutanota.com>