Revert "cpufreq: add generic get idle functions."

This reverts commit fff2ea1d6383f2a84f3d8000f53d18fb3dea8a6d.

Conflicts:
	drivers/cpufreq/cpufreq.c
Revert "cpufreq: Manage only online cpus"

This reverts commit aa6bd100be1dad22a7932dfcb9b283e3c6bf7fef.
Revert "cpufreq: Retain only online cpus in managed_policy->cpus"

This reverts commit 27e7bdb5c533c72628e4c636df1dea78e593c548.
Revert "cpufreq: break earlier if the target_freq is equal to the current freq."

This reverts commit 61d9124456235480b0afbb7344f176bd680e444c.
Revert "cpufreq: interactive: Add Uevent Signal on Gov Start"

This reverts commit 7b3d3a50426b792b7a4f595923bf210351446e91.

Conflicts:
	drivers/cpufreq/cpufreq_interactive.c