Converted the instance of osgNew and osgDelete back to new and delete as part

of depecating the include/osg/MemoryManager

src/osgPlugins/osg/PolygonOffset.cpp

@@ -14,7 +14,7 @@ bool PolygonOffset_writeLocalData(const Object& obj, Output& fw);
 // register the read and write functions with the osgDB::Registry.
 RegisterDotOsgWrapperProxy g_PolygonOffsetProxy
 (
-    osgNew osg::PolygonOffset,
+    new osg::PolygonOffset,
     "PolygonOffset",
     "Object StateAttribute PolygonOffset",
     &PolygonOffset_readLocalData,