Revert "Stop flickering in rendering of charts in Writer"

Hide when it's actually a normal chart.

This reverts commit b79b862927d937d695b31df4bdb85d1fc8774f39.

Change-Id: Ib7aee142cea979293864f3916eb0580a82605b2b

chart2/source/view/main/ChartView.cxx

@@ -2497,6 +2497,11 @@ void ChartView::createShapes()
     else
     {
         m_pGL3DPlotter.reset();
+
+        // hide OpenGL window for now in normal charts
+        OpenGLWindow* pWindow = mrChartModel.getOpenGLWindow();
+        if(pWindow && !getenv("CHART_DUMMY_FACTORY"))
+            pWindow->Show(false);
     }
 #endif