Removed old code, using a non-default text for the undo stack

src/gui/MainWindow.cpp

@@ -166,7 +166,9 @@ void MainWindow::initializeDockWidgets( void )
                                   QDockWidget::AllDockWidgetFeatures,
                                   Qt::TopDockWidgetArea );
 
-    dockManager->addDockedWidget( new QUndoView( UndoStack::getInstance(), this),
+    QUndoView* undoView = new QUndoView( UndoStack::getInstance(), this);
+    undoView->setEmptyLabel( tr( "Nothing to undo" ) );
+    dockManager->addDockedWidget( undoView,
                                   tr( "History" ),
                                   Qt::AllDockWidgetAreas,
                                   QDockWidget::AllDockWidgetFeatures,

src/gui/TracksView.cpp

@@ -364,10 +364,6 @@ void TracksView::mouseReleaseEvent( QMouseEvent* event )
             updateDuration();
             if ( m_layout->itemAt( 0 )->graphicsItem()->childItems().count() > 0 )
                 addVideoTrack();
-//            emit clipMoved( movieItem->clip()->getUuid(),
-//                            movieItem->oldTrackNumber,
-//                            movieItem->trackNumber(),
-//                            (qint64)movieItem->pos().x() );
             Commands::trigger( new Commands::MainWorkflow::MoveClip( m_mainWorkflow, movieItem->clip()->getUuid(),
                                                                      movieItem->oldTrackNumber, movieItem->trackNumber(),
                                                                      (qint64)movieItem->pos().x() ) );