pine64-pinebook-pro: remove inappropriate overriding of min_freq

[tomfitzhenry]

Power management should be left to a power management daemon (e.g. gnome-power-manager) or for users to set/override themselves (e.g. by setting a CPU governor).

I use governor 'schedutil', which is big.LITTLE aware, and thus can sensibly downclock, but min_freq prevents that.

[tomfitzhenry]

cc @aciceri @samueldr

[aciceri]

It makes sense to me, consider that the original wip-pinebook-pro is deliberately opinionated. Anyway I see that this is still done by Elementary OS, do you say we should leave a note in the README with written that these settings could be useful if one is not using a power management daemon?

[samueldr]

Makes sense, but also would invite discussion about how to expose such settings as a user-friendly way for systems builds where there is no userspace component to manage this.

As @aciceri said, this comes from my opinionated config.

This is also missing a detail about how I'm using the OP1 OPPs, basically overclocking/re-clocking the RK3399 in the Pinebook Pro [it actually adds an additional step]. So it's not even the complete view of the problem.

[tomfitzhenry]

Setting powerManagement.cpuFreqGovernor is a simple and effective way to control power management, e.g. powersave or performance. Shall I add that to the README?

[Mic92]

Setting powerManagement.cpuFreqGovernor is a simple and effective way to control power management, e.g. powersave or performance. Shall I add that to the README?

I don't think this is needed unless specific quirks are needed for this device. This is a common interface used in many places.