Remove SubscribeToEvent

events.go

@@ -128,16 +128,6 @@ func (evsw *EventSwitch) FireEvent(event string, data EventData) {
 	eventCell.FireEvent(data)
 }
 
-func (evsw *EventSwitch) SubscribeToEvent(receiver, eventID string, chanCap int) chan interface{} {
-	// listen for new round
-	ch := make(chan interface{}, chanCap)
-	evsw.AddListenerForEvent(receiver, eventID, func(data EventData) {
-		// NOTE: in production, evsw callbacks should be nonblocking.
-		ch <- data
-	})
-	return ch
-}
-
 //-----------------------------------------------------------------------------
 
 // eventCell handles keeping track of listener callbacks for a given event.