settings: do not call connectivityChanged() when opening settings

Change-Id: If2b36e884873f18f396860359baa24c518e5d347
Gitlab: #624

ring-android/app/src/main/java/cx/ring/service/DRingService.java

@@ -586,8 +586,6 @@ public class DRingService extends Service {
         updateConnectivityState();
 
         mDisposableBag.add(mPreferencesService.getSettingsSubject().subscribe(s -> {
-            //refreshContacts();
-            updateConnectivityState();
             showSystemNotification(s);
         }));