No need for XShape dumping (for unit testing) for non-desktop

We don't do unit testing when cross-compiling anyway. (And even if we
did, in some magic fashion, I don't think we would want
debugging/testing functionality like this dumping thing to be dragged
in into a production build of an app. It's not a huge amount of code,
but still.)

Change-Id: I12bc552b10452263572074aae865138ff30fbfc8

chart2/source/view/main/ChartView.cxx

@@ -3055,6 +3055,9 @@ uno::Sequence< OUString > ChartView::getAvailableServiceNames() throw (uno::Runt
 
 OUString ChartView::dump() throw (uno::RuntimeException, std::exception)
 {
+#if HAVE_FEATURE_DESKTOP
+    // Used for unit tests only, no need to drag in this when cross-compiling
+    // for non-desktop
     impl_updateView();
     if(!mxRootShape.is())
         mxRootShape = AbstractShapeFactory::getOrCreateShapeFactory(m_xShapeFactory)
@@ -3067,7 +3070,9 @@ OUString ChartView::dump() throw (uno::RuntimeException, std::exception)
         XShapeDumper dumper;
         return dumper.dump(mxRootShape);
     }
-
+#else
+    return OUString();
+#endif
 }
 
 void ChartView::setViewDirty()