Revert "added stockdemand governor (thx to anarkia1976)"

This reverts commit 54921fb1eb6ce58ba453d3c695dc9eb7a605d59a.
Revert "cpufreq: Break out early when frequency equals target_freq"

This reverts commit da57230367d92f099617ec1d70129171364d4bd7.
Revert "cpufreq: Optimize cpufreq_frequency_table_verify()"

This reverts commit 6be485f2cdf615bea33023346a63910ea62bdd59.