Version 2 API only.

`removeListener`

Method Signature	void ultraCart.removeListener(String event, function);
Description	Removes a function as a listener to an ultraCart event
Parameter	String event - the name of the event. Events are listed and discussed in the init() method documentation.
Parameter	function - a javascript function.
Result	no return value

see addListener and fire

function doSomethingWhenShippingChanges(){
    alert('shipping choice changed!');
}

ultraCart.removeListener(ultraCart.events.EVENT_SHIPPING_CHANGE, doSomethingWhenShippingChanges);

removeListener (JS API v2)

removeListener

`removeListener`