Revert "default GetLuciAuth to latest SHA1 version"

This reverts commit feb0b2beeff9b029f0b4bb73423aecf7ae541752.

Reason for revert: crbug.com/874164

It appears that this CL is not correct for older branches.

Original change's description:
> default GetLuciAuth to latest SHA1 version
> 
> BUG=chromium:871831
> TEST=local unit test
> 
> default to latest SHA1 instead of latest to
> fix old branches.
> 
> Change-Id: Ib14ec566181908a054c14f2d84b48ff5af0e76e6
> (cherry picked from commit dd861a00fcd4134f9eecddf9607dd2af067113aa)
> Reviewed-on: https://chromium-review.googlesource.com/1168181
> Reviewed-by: Gregory Meinke <gmeinke@chromium.org>
> Tested-by: Mike Frysinger <vapier@chromium.org>
> Commit-Queue: Gregory Meinke <gmeinke@chromium.org>

BUG=chromium:871831,chromium:874164

Change-Id: I31ccea8a51ac4be063908258e07feeffa9213925
Reviewed-on: https://chromium-review.googlesource.com/1177170
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Commit-Queue: Mike Frysinger <vapier@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
1 file changed