ref: f3e7539c6786eb97014f623d8b4ee967b5bdac1c
parent: e15fedb9258251bbb07def57e49e2bd1e0c4c538
author: Marco Paniconi <marpan@google.com>
date: Tue Dec 15 11:44:40 EST 2015
Revert "Add "unknown" status for noise estimation." This reverts commit e15fedb9258251bbb07def57e49e2bd1e0c4c538. Change-Id: Ibf2bce008c727a9754f88814b7630095fa7b8253