Remove labels argument from task template

cats_vs_dogs_sample.py

@@ -55,7 +55,7 @@ class CatsVsDogs(datasets.GeneratorBasedBuilder):
             supervised_keys=("image", "labels"),
             task_templates=[
                 ImageClassification(
-                    image_column="image", label_column="labels", labels=["cat", "dog"]
+                    image_column="image", label_column="labels"
                 )
             ],
             homepage=_HOMEPAGE,