removed intentional COG invite fail.

ts/session/sending/MessageQueue.ts

@@ -157,9 +157,6 @@ export class MessageQueue {
   ): Promise<boolean> {
     let rawMessage;
     try {
-      if (Math.random() > 0.3) {
-        throw 'fail';
-      }
       rawMessage = await MessageUtils.toRawMessage(user, message);
       const wrappedEnvelope = await MessageSender.send(rawMessage);
       await MessageSentHandler.handleMessageSentSuccess(rawMessage, wrappedEnvelope);