remove some unnecessary GL commands now that we're using shaders

src/dwss.cc

@@ -42,9 +42,6 @@ int main (int argc, char *argv[])
 {
     GnomeScreensaver gs(&argc, &argv, configure, expose, update, 12);
 
-    glShadeModel(GL_SMOOTH);
-    glEnable(GL_LIGHTING);
-    glEnable(GL_LIGHT0);
     glEnable(GL_DEPTH_TEST);
 
     current_mode = getMode(gs);