Revert "drivers: thermal: cpu_cooling: Snapshot of cpu cooling driver"

This reverts commit 763658b9.

This is a preparation change for merging android-4.19.14 into
msm-4.19 branch. It is needed to resolve conflicts caused by
merging upstream change [1]. [1] was fully discarded in upmerge
[2]. Now Tech team (Ram Chandrasekar) decided to pick up the
change.

[1] ANDROID: thermal: cpu_cooling: Migrate to using the EM framework
[2] 4ac13bd1 Merge remote-tracking branch 'origin_4.19/tmp-0567d2f4' into msm-4.19

Change-Id: Ia9971afff379228a55652f8d10e77b14cc5afa3b
Signed-off-by: Ivaylo Georgiev <irgeorgiev@codeaurora.org>