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

of depecating the include/osg/MemoryManager

src/osgPlugins/osg/TexGen.cpp

@@ -20,7 +20,7 @@ const char* TexGen_getModeStr(TexGen::Mode mode);
 // register the read and write functions with the osgDB::Registry.
 RegisterDotOsgWrapperProxy g_TexGenProxy
 (
-    osgNew osg::TexGen,
+    new osg::TexGen,
     "TexGen",
     "Object StateAttribute TexGen",
     &TexGen_readLocalData,