Fix: account creation shown when account exists

Remove the manual accountChanged event fired when loading accounts
The daemon fires its own accountChanged event for which the
application must relies on so there is no more concurrency errors

Change-Id: Id07128379289a8dc17248e295265510090e1ef54
Tuleap: #1711

ring-android/libringclient/src/main/java/cx/ring/services/AccountService.java

@@ -142,10 +142,6 @@ public class AccountService extends Observable {
 
                 setAccountsActive(isConnected);
                 Ringservice.connectivityChanged();
-
-                setChanged();
-                ServiceEvent event = new ServiceEvent(ServiceEvent.EventType.ACCOUNTS_CHANGED);
-                notifyObservers(event);
             }
         });
     }