feat(src/app/AsyncObjectBuilder): better code

linphone-desktop/src/app/AsyncObjectBuilder.cpp

@@ -54,8 +54,6 @@ protected:
       QQmlEngine::setObjectOwnership(object, QQmlEngine::CppOwnership);
       object->setParent(m_builder);
 
-      m_builder->m_is_created = true;
-
       // Call user decorator.
       if (m_builder->m_decorator)
         m_builder->m_decorator(object);

linphone-desktop/src/app/AsyncObjectBuilder.hpp

@@ -45,7 +45,7 @@ public:
   QObject *getObject () const;
 
   bool isCreated () const {
-    return m_is_created;
+    return !!m_object;
   }
 
 signals:
@@ -61,8 +61,6 @@ private:
 
   QObject *m_object = nullptr;
 
-  bool m_is_created = false;
-
   #ifdef QT_DEBUG
     bool m_block_creation = false;
   #endif // ifdef QT_DEBUG