Removed osgGA::GUIEventHandlerVisitor and osgGA::SetSceneVistor classes/headers as

this classes weren't being actively used the distribution, effectively being noops.

src/osgGA/GNUmakefile

@@ -12,9 +12,7 @@ CXXFILES = \
         EventQueue.cpp\
         GUIEventAdapter.cpp\
         GUIEventHandler.cpp\
-        GUIEventHandlerVisitor.cpp\
         KeySwitchMatrixManipulator.cpp\
-        SetSceneViewVisitor.cpp\
 	StateSetManipulator.cpp\
 	SimpleViewer.cpp\
 	TerrainManipulator.cpp\

src/osgGA/GUIEventHandler.cpp

@@ -49,52 +49,3 @@ void GUIEventHandler::event(osg::NodeVisitor* nv, osg::Drawable* drawable)
     }
 }
 
-void CompositeGUIEventHandler::getUsage(osg::ApplicationUsage& usage) const
-{
-    for (ChildList::const_iterator itr=_children.begin();
-        itr!=_children.end();
-        ++itr)
-    {
-        (*itr)->getUsage(usage);
-    }
-}
-
-bool CompositeGUIEventHandler::handle(const GUIEventAdapter& ea,GUIActionAdapter& aa, osg::Object* object, osg::NodeVisitor* nv)
-{
-    bool result=false;
-
-    for (ChildList::iterator itr=_children.begin();
-         itr!=_children.end();
-         ++itr)
-    {
-        result |= (*itr)->handle(ea, aa, object, nv);
-    }
-    return result;
-}
-
-
-bool CompositeGUIEventHandler::addChild(GUIEventHandler *child)
-{
-    if (child && !containsNode(child))
-    {
-        // note ref_ptr<> automatically handles incrementing child's reference count.
-        _children.push_back(child);
-        return true;
-    }
-    else return false;
-
-}
-
-bool CompositeGUIEventHandler::removeChild(GUIEventHandler *child)
-{
-    ChildList::iterator itr = findChild(child);
-    if (itr!=_children.end())
-    {
-        // note ref_ptr<> automatically handles decrementing child's reference count.
-        _children.erase(itr);
-
-        return true;
-    }
-    else return false;
-
-}

src/osgGA/GUIEventHandlerVisitor.cpp

@@ -1,9 +0,0 @@
-#include <osgGA/GUIEventHandlerVisitor>
-#include <osgGA/GUIEventHandler>
-
-void osgGA::GUIEventHandlerVisitor::visit(osgGA::CompositeGUIEventHandler& cgeh)
-{
-    for(unsigned int i=0; i<cgeh.getNumChildren(); i++){
-        cgeh.getChild(i)->accept(*this);
-    }
-}

src/osgGA/SetSceneViewVisitor.cpp

@@ -1,16 +0,0 @@
-#include <osgGA/SetSceneViewVisitor>
-#include <osgGA/StateSetManipulator>
-#include <osgGA/MatrixManipulator>
-
-void osgGA::SetSceneViewVisitor::visit(osgGA::MatrixManipulator& cm)
-{
-    cm.setNode(_sceneView->getSceneData());
-    cm.setByInverseMatrix(_sceneView->getViewMatrix());
-    cm.init(*getGUIEventAdapter(),*getGUIActionAdapter());
-    cm.home(*getGUIEventAdapter(),*getGUIActionAdapter());
-}
-
-void osgGA::SetSceneViewVisitor::visit(osgGA::StateSetManipulator& ssm)
-{
-    ssm.setStateSet(_sceneView->getGlobalStateSet());
-}

src/osgGA/StateSetManipulator.cpp

@@ -113,10 +113,6 @@ void StateSetManipulator::getUsage(osg::ApplicationUsage& usage) const
     usage.addKeyboardMouseBinding("w","Toggle polygon fill mode between fill, line (wire frame) and points");
 }
 
-void StateSetManipulator::accept(GUIEventHandlerVisitor& gehv)
-{
-    gehv.visit(*this);
-}
 
 void StateSetManipulator::setBackfaceEnabled(bool newbackface)
 {