Revert "GHOST_RAND_SEED_NONE = 0 for unsetting rand seed"
Revert "GHOST_RAND_SEED_NONE = 0 for unsetting rand seed"

This reverts commit eaf57d0d9e230628fe060cf246f69cb0cdb65c1e.

RRZE-HPC/GHOST,RRZE-HPC/GHOST,RRZE-HPC/GHOST,RRZE-HPC/GHOST