docs: protected void removeNeighborsFromOrdering(
          final Collection<TrustGraphNodeId> neighbors) {
          final Set<TrustGraphNodeId> killSet = 
              new HashSet<TrustGraphNodeId>(neighbors);
          ListIterator<TrustGraphNodeId> i = orderedNeighbors.listIterator();
          while (i.hasNext()) {
              if (killSet.contains(i.next())) {
                  i.remove();
              }
          }
      }