Revert "Change the root of trust for CryptAuth Vault Service"
This reverts commit 1f409786.
Reason for revert: Will resubmit once the server side change is ready
Bug: 79513473
Bug: 78920513
Change-Id: I4c94d307a9181390a59cdc1602cc9d04c1661ad0
(cherry picked from commit be4f735c)