HBSD: Revert "HARDENING: randomize pid numbers"

This reverts commit af29a61e5ca6c5f0b8ed9926a3d54ea8dcd68813.

The randompid property can changed only with sysctl, and not with
tunable. If I change it's value in the code before the init started,
then the init picked up wrong PID number.

Signed-off-by: Oliver Pinter <oliver.pntr@gmail.com>