Revert "add YankActive and YankDemand governors to defconfig"

This reverts commit 65d96731990d710d40b443b98ab7d4ccc7b32279.
Revert "cpufreq: add yankdemand governor"

This reverts commit df1f4afcb90295b34097c68d363d2a0e88116c00.
Revert "cpufreq: add yankactive governor"

This reverts commit 5880b8dde7a741a44b06000240051befa006eeae.