Back out previous patch to ppc idle that handled CPU's that did not have
powersavings.  Ingo's fixes to cpu_rest, cause this fix to no longer be
needed.
Signed-off-by: Kumar Gala <kumar.gala@freescale.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>