removeEventListener
Listen to when a compute changes value.
    compute.removeEventListener(eventType, handler)
  
  const age = compute( 33 );
age.removeEventListener( "change", function( ev, newVal, oldVal ) {
    ev; //-> {type: "change", batchNum: 5}
    newVal; //-> 34
    oldVal; //-> 33
} );
age( 34 );
  
  Parameters
- eventType 
{String}:The name of the event to bind on, usually
change. - handler 
{function(event, args...)}:The handler to be called when this type of event fires.