Remove an event handler for the current or specified scope.
WLEvent.off(eventName, funcRef, scope);
|eventName||The name of the event.||String||Required|
|funcRef||The function that was registered and should be removed.||Function||Optional||If no value is provided, then all handlers for the event are removed.|
|scope||The scope the event is removed from.||String||Optional||If no value is provided, the current scope is used.|
/* The session scan event for myFunction is removed from the
* event handlers.
WLEvent.off("Scan", myFunction, "session");