Nim: Simplified project scan by removing QFutureInterface

Change-Id: I60a0d3354083215661def0acd4c26c1ece00dea7
Reviewed-by: Eike Ziller <eike.ziller@qt.io>

src/plugins/nim/project/nimproject.h

@@ -59,7 +59,6 @@ private:
     void updateProject();
 
     QStringList m_files;
-    QFutureInterface<QList<ProjectExplorer::FileNode *>> m_futureInterface;
     QFutureWatcher<QList<ProjectExplorer::FileNode *>> m_futureWatcher;
 
     QElapsedTimer m_lastProjectScan;