BugLink: http://bugs.launchpad.net/bugs/1599109

This commit has been reported to cause some flicker issues on a specific
Skylake machine

https://lists.freedesktop.org/archives/intel-gfx/2016-June/098826.html

So revert this for now until a proper fix for the issue is provided:

commit a0562819
Author: Ville Syrjälä <ville.syrjala@linux.intel.com>
Date:   Mon Apr 11 10:23:51 2016 +0300

    drm/i915: Get panel_type from OpRegion panel details
Signed-off-by: Timo Aaltonen <timo.aaltonen@canonical.com>
Acked-by: Tim Gardner <tim.gardner@canonical.com>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>