Revert "Use PVS_FAST tables for NOMINAL CPUs."

This reverts commit 20f30fb48e7123620bc56abe69d1c47281b73b51.
Revert "Add PR_{GET,SET}_NO_NEW_PRIVS to prevent execve from granting privs"

This reverts commit 37be7597f87acd9593fb696984612a737cd1658c.