ref: Remove RPCTransitionState Envvar.
ref: Remove RPCTransitionState Envvar.

Change-Id: If9b35f8c639bba351e96416b47d8bfbe2e27284e

vanadium/go.ref,vanadium/go.ref,vanadium/go.ref,vanadium/go.ref,vanadium/go.ref,vanadium/go.ref