======Remove Command======
This command is being sent by the server to a subscriber whenever a node is being removed or a node is being moved from a subscribed sub-tree into a non-subscribed sub-tree.

<code>
<subscription id> remove <node id>
</code>
  * The ''subscription id'' is the id of the node on which the subscription was originally made.
  * The ''node id'' is the id of the new node.