tools/presubmit: presubmit needs to use non-mirror manifest
tools/presubmit: presubmit needs to use non-mirror manifest

Change-Id: Ieb5fcc8b028a02d0cf7f4ebd8c1d11a1727c9193

vanadium/go.devtools,vanadium/go.devtools,vanadium/go.devtools