Remove "thermal.sh" since it's moved to chromiumos-overlay

This file is used on machines that don't necessarily use the daisy
overlay, so let's move it someplace more generic.

CQ-DEPEND=CL:186604
BUG=chrome-os-partner:23663
TEST=See that thermal throttling is still present and works:
1. Boot and run "grep thermal /var/log/messages" and see logs
2. Run something stressful (webgl aquarium) and watch throttling
3. Stop the stress and watch no more throttling

Change-Id: Ie9ee5dfabcdf0e7f25db692e3b97187390377d63
Reviewed-on: https://chromium-review.googlesource.com/186590
Reviewed-by: Doug Anderson <dianders@chromium.org>
Commit-Queue: Doug Anderson <dianders@chromium.org>
Tested-by: Doug Anderson <dianders@chromium.org>
4 files changed