longevity tests: Small cleanup from v.io/c/21879l
longevity tests: Small cleanup from v.io/c/21879l

Change-Id: Id1d9b8dd8a07d00759f57876f410a5272606e731

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