[Intel-gfx] [CI 20/21] drm/i915: Remove unsafe i915.enable_rc6

[Matt Turner]

On Sun, Nov 19, 2017 at 6:32 AM, Chris Wilson <chris at chris-wilson.co.uk> wrote:
> It has been many years since the last confirmed sighting (and fix) of an
> RC6 related bug (usually a system hang). Remove the parameter to stop
> users from setting dangerous values, as they often set it during triage
> and end up disabling the entire runtime pm instead (the option is not a
> fine scalpel!).

This makes a lot of sense, except for the fact that the next patch
enables RC6 on Ironlake...