remove envronment map category

RefRef.py

@@ -78,7 +78,7 @@ class RefRef(datasets.GeneratorBasedBuilder):
                                               f"{self.config.scene}_sphere" if cat == "textured_sphere_scene" else self.config.scene),
                     "split": f"{'cubeBg' if cat == 'textured_cube_scene' else 'sphereBg' if cat == 'textured_sphere_scene' else 'envMapBg'}_{'singleMatConvex' if self.config.name == 'single-convex' else 'singleMatNonConvex' if self.config.name == 'single-non-convex' else 'multiMatNonConvex'}_{self.config.scene}",
                 },
-            ) for cat in ["textured_sphere_scene", "textured_cube_scene", "environment_map_scene"]
+            ) for cat in ["textured_sphere_scene", "textured_cube_scene"]
         ]
 
     def _generate_examples(self, filepaths, split):