/// <summary>
 /// Remove values attributed to <code>topic</code> unexpanded. i.e no wildcard matching is used.
 /// </summary>
 /// <param name="topic">Topic to Match</param>
 /// <param name="value">Value to Remove</param>
 public void Remove(Topic topic, T value)
 {
     rootNode.Remove(topic, 0, value);
 }