Revert: "cpuidle: teo: Introduce util-awareness"

This reverts commit 9ce0f7c4.

Util-awareness was reported to be too aggressive in selecting shallower
states. Additionally a single threshold was found to not be suitable
for reasoning about sleep length as, for all practical purposes,
almost arbitrary sleep lengths are still possible for any load value.

Fixes: 9ce0f7c4 ("cpuidle: teo: Introduce util-awareness")
Link: https://patch.msgid.link/20240628095955.34096-2-christian.loehle@arm.com


Reported-by: Qais Yousef <qyousef@layalina.io>
Reported-by: Vincent Guittot <vincent.guittot@linaro.org>
Reviewed-by: Qais Yousef <qyousef@layalina.io>
Tested-by: Vincent Guittot <vincent.guittot@linaro.org>
Signed-off-by: Christian Loehle <christian.loehle@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>