remove event listeners

Author: enriqueviard

libs/event-emitter-helper.js

@@ -65,6 +65,7 @@ const EventEmitterHelper = {
         }))
     },
     removeEventListener(type, handler) {
+        NativeAppEventEmitter.removeAllListeners(type)
         if (!_eventHandlers[type].has(handler)) {
             return
         }

libs/twilio-voice-client.js

@@ -86,6 +86,7 @@ const TwilioVoiceClient = {
         _eventHandlers[type].set(handler, NativeAppEventEmitter.addListener(type, rtn => { handler(rtn) }))
     },
     removeEventListener(type, handler) {
+        NativeAppEventEmitter.removeAllListeners(type)
         if (!_eventHandlers[type].has(handler)) {
             return
         }