Removed now redundent shader files.
Removed now redundent shader files.

Fixed the adding of  transfer function property.


ntoand/osg,stmh/osg,artoolkit/osg,XiaoCC/osg,XiaoCC/osg,artoolkit/osg,ntoand/osg,stmh/osg,koshman86/osg,ntoand/osg,stmh/osg,koshman86/osg,omega-hub/osg,stmh/osg,ghub/osg,stmh/osg,koshman86/osg,ghub/osg,artoolkit/osg,XiaoCC/osg,koshman86/osg,omega-hub/osg,ghub/osg,artoolkit/osg,omega-hub/osg,ghub/osg,XiaoCC/osg,XiaoCC/osg,ntoand/osg,omega-hub/osg