Remove noisy logging referenced in #1246
Remove noisy logging referenced in #1246

This really is a pain when doing the tutorials, and we're
doing live testing tomorrow.

Change-Id: Ib1174e8eab9df1ce1219a1302555155c34234add

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