Revert "ARM: tegra: cpuquiet: make userspace governor actions synchronous"

This reverts commit 42f5db7d8985ae542d54f892d7afca5e7f12d616.
Revert "cpuquiet: Fix locking in driver_unregister"

This reverts commit 7c53218f1480781f6b59be8408989e1dec1f7719.
Revert "cpuquiet: balanced governor requires cpufreq"

This reverts commit 0fe97c548e10bd74157a7bbe93a7f7fb25b19e8a.