Revert "Change the root of trust for CryptAuth Vault Service"

This reverts commit 1f4097860987a7e8337f7ffb101488512698e69c.

Reason for revert: Will resubmit once the server side change is ready

Bug: 79513473
Bug: 78920513
Change-Id: I4c94d307a9181390a59cdc1602cc9d04c1661ad0
4 files changed