QmlDesigner.statesView: not changing to base state anymore

Before recent refactoring (done by Marco) the node instances were not
able to handle outside the current state. So we had to change back to
the base state for all base state changes from the rewriter.

This is not necessary, anymore.

Reviewed-by: Marco Bubke

src/plugins/qmldesigner/components/stateseditor/stateseditorview.cpp

@@ -396,14 +396,6 @@ void StatesEditorView::customNotification(const AbstractView *view, const QStrin
     if (debug)
         qDebug() << __FUNCTION__;
 
-    QmlModelView::customNotification(view, identifier, nodeList, data);
-    if (identifier == StartRewriterAmend) {
-        m_oldRewriterAmendState = currentState();
-        QmlModelView::setCurrentState(baseState());
-    } else if (identifier == EndRewriterAmend) {
-        if (m_oldRewriterAmendState.isValid())
-            QmlModelView::setCurrentState(m_oldRewriterAmendState);
-    }
 }
 
 QPixmap StatesEditorView::renderState(int i)