Revert "ACPI: processor: idle: fix lockup regression on 32-bit ThinkPad T40"

Revert "ACPI: processor: idle: fix lockup regression on 32-bit ThinkPad T40"

commit b09ad1f837a36d749555a16e9d46deccceb8babc upstream.

This reverts commit 4ad5cb65e8304c877c0176b70ee2af1b46e30a40.

This was presumably misdiagnosed as an inability to use C3 at
all when I suspect the real problem is just misconfiguration of
C3 vs. ARB_DIS.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: 5.16+ <stable@vger.kernel.org> # 5.16+
Tested-by: Woody Suwalski <wsuwalski@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>