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

twitter_sentiment.py

@@ -3,7 +3,7 @@
 import csv
 
 import datasets
-from datasets.tasks import TextClassification
+
 
 _DESCRIPTION = """\
 """
@@ -33,9 +33,6 @@ class Custom(datasets.GeneratorBasedBuilder):
             ),
             homepage="",
             citation=_CITATION,
-            task_templates=[
-                TextClassification(text_column="text", label_column="label")
-            ],
         )
 
     def _split_generators(self, dl_manager):