Remove deprecated tasks (#2)

- Remove deprecated tasks (c0af8c2eccc7082ea3b2dbea025cc604ae236d96)

nst.py

@@ -19,7 +19,6 @@ import json
 import os
 
 import datasets
-from datasets.tasks import AutomaticSpeechRecognition
 
 
 _DESCRIPTION = """\
@@ -90,9 +89,6 @@ class NSTDataset(datasets.GeneratorBasedBuilder):
             features=features,
             supervised_keys=None,
             homepage=_URL,
-            task_templates=[
-                AutomaticSpeechRecognition(audio_column="audio", transcription_column="text")
-            ],
         )
 
     # split is hardcoded to 'train' for now; there is a test set, but