[Intel-gfx] [PATCH] Revert "drm/dp_helper: Add DP aux channel tracing"

[Chris Wilson]

Quoting Chris Wilson (2018-07-17 08:55:15)
> This reverts commit a18b21929453af70390e14f8dee40acf00d428cb.

The patch is implicated in
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_4496/fi-skl-6700hq/igt@kms_flip@basic-flip-vs-dpms.html

From the looks of it, it should just be a timing issue. But first, I
just want to confirm if reverting it does make link training "stable"
again.
-Chris