Glados: Remove the init values of jtag_vref_sel0 and jtag_vref_sel1

The init values are already set in the base configs, like servo_v2.xml.
Servo v3 board doesn't work. Better to skip setting init values on
the board overlay, like servo_glados_overlay.xml.

BUG=chromium:649741
TEST=None

Change-Id: I3dbfb794c74124cf8c6f0b98d400c4dd4474d9cc
Reviewed-on: https://chromium-review.googlesource.com/388917
Commit-Ready: Wai-Hong Tam <waihong@google.com>
Tested-by: Wai-Hong Tam <waihong@google.com>
Reviewed-by: danny chan <dchan@chromium.org>
(cherry picked from commit b0f8ceceb4d084bb4c1923d835085980aa5cd7ec)
Reviewed-on: https://chromium-review.googlesource.com/391238
Reviewed-by: Michael Tang <ntang@chromium.org>
Commit-Queue: Mohan Konduri <krk@chromium.org>
Tested-by: Mohan Konduri <krk@chromium.org>
1 file changed