Revert "[CEC Configuration] Move master configuration from '/pro..."

Revert "[CEC Configuration] Load master XML into root etc directory"

Revert submission 12931786-CecConfigMasterXml

Reason for revert: Breaks baseline
Reverted Changes:
If40b7a01e:[CEC Configuration] Move master configuration from...
Icd334d352:[CEC Configuration] Load master XML into root etc ...

Bug: 174349652
Change-Id: I768e01b7b074d3138e05f2d491995fbd377261a8