Sync stop operations (2)

app/src/main/java/eu/faircode/email/ServiceSynchronize.java

@@ -2321,14 +2321,13 @@ public class ServiceSynchronize extends ServiceBase implements SharedPreferences
 
                     // Stop watching operations
                     Log.i(account.name + " stop watching operations");
-                    final TwoStateOwner _owner = cowner.value;
-                    if (_owner != null) {
                     final CountDownLatch latch = new CountDownLatch(1);
+
                     getMainHandler().post(new RunnableEx("observe#stop") {
                         @Override
                         public void delegate() {
                             try {
-                                    _owner.destroy();
+                                cowner.value.destroy();
                             } catch (Throwable ex) {
                                 Log.e(ex);
                             } finally {
@@ -2342,7 +2341,6 @@ public class ServiceSynchronize extends ServiceBase implements SharedPreferences
                     } catch (InterruptedException ex) {
                         Log.w(ex);
                     }
-                    }
 
                     // Stop executing operations
                     Log.i(account.name + " stop executing operations");