Revert "cpuidle: Fix finding state with min power_usage"

This reverts commit 25a80ef8907df8514225a58ba0c2d15034fb2dcc.
Revert "cpuidle: Get typical recent sleep interval"

This reverts commit b94e4c8692040a0177bd60ed97137fa97f4cdfff.
Revert "cpuidle: Quickly notice prediction failure in general case"

This reverts commit 36e27b64a4d25ea6c0f10925e7a0969c690b4d55.
Revert "cpuidle: Quickly notice prediction failure for repeat mode"

This reverts commit 2b2ae45c92523cc24214a5083d8fa6d9b4ba0d94.
Revert "nohz: stat: Fix CPU idle time accounting"

This reverts commit ba978f373141d297ba7f42ea1e53430007832e68.

Conflicts:

	fs/proc/stat.c