Revert "libbrillo: Update libchrome APIS to r456626."

This reverts commit 2dc254ac567d43b060356ed4d660aca64fdc14a2.

Reason for revert: Broke the mac_sdk
Exempt-From-Owner-Approval: Fixing mac_sdk

Change-Id: Ie8706d7846f725a4786a2e9f9a369ee2bc549838
18 files changed