message: remove some commented-out tracing
diff: @@ -295,8 +295,6 @@ impl<'a, 'tcx> EvalContext<'a, 'tcx> {
  _ => bug!("field access on non-product type: {:?}", base_layout),
  };
  - //trace!("Field {} of {:?} is at offset {}{}", field_index, base_ty, offset.bytes(),
  - // if packed { " (packed)" } else { "" });
  // Do not allocate in trivial cases
  let (base_ptr, base_extra, aligned) = match base {
  