[Intel-gfx] [PATCH 3/4] drm/i915: remove some unused declarations from intel_drv.h

[Chris Wilson]

Quoting Jani Nikula (2019-05-22 15:50:29)
> intel_mark_busy(), intel_mark_idle(), and skl_cdclk_get_vco() no longer
> exist.

And there are some obsolete comments for them as well, git grep
mark_busy.
-Chris