If this is invoked, then the destruction of this instance will no longer invoke the
FinalAction's callback. This is useful in situations where it is no longer necessary to know when the
FinalAction is destructed. For example, ValueToClassDecorator<InstanceT, DecorationT> invokes this method when a decoration is manually removed, whereupon the associated
FinalAction (which was created to remove the decoration association if the decoration itself is ever destructed) should no longer be called because the association has already been removed.