Remove deprecated tasks

This dataset uses `tasks`, which are deprecated and will raise an error after the next major release of `datasets`. See: https://github.com/huggingface/datasets/pull/6999

rvl_cdip.py

@@ -18,7 +18,6 @@
 import os
 
 import datasets
-from datasets.tasks import ImageClassification
 
 
 _CITATION = """\
@@ -92,7 +91,6 @@ class RvlCdip(datasets.GeneratorBasedBuilder):
             homepage=_HOMEPAGE,
             citation=_CITATION,
             license=_LICENSE,
-            task_templates=[ImageClassification(image_column="image", label_column="label")],
         )
 
     def _split_generators(self, dl_manager):