remove no longer needed stuff

apps/openmw/mwrender/renderingmanager.cpp

@@ -208,9 +208,7 @@ namespace MWRender
         mSceneRoot = sceneRoot;
         sceneRoot->setStartLight(1);
 
-        mSceneSwitch = new osg::Switch;
-        mSceneSwitch->addChild(sceneRoot);
-        mRootNode->addChild(mSceneSwitch);
+        mRootNode->addChild(mSceneRoot);
 
         mPathgrid.reset(new Pathgrid(mRootNode));
 

apps/openmw/mwrender/renderingmanager.hpp

@@ -224,7 +224,6 @@ namespace MWRender
         osg::ref_ptr<osgViewer::Viewer> mViewer;
         osg::ref_ptr<osg::Group> mRootNode;
         osg::ref_ptr<osg::Group> mSceneRoot;
-        osg::ref_ptr<osg::Switch> mSceneSwitch;
         Resource::ResourceSystem* mResourceSystem;
 
         osg::ref_ptr<SceneUtil::WorkQueue> mWorkQueue;