Remove deprecated tasks (#1)

- Remove deprecated tasks (e1f8ebbe62f08f0d3280ace999616a9b8243d399)

image-folder.py

@@ -8,13 +8,6 @@ logger = datasets.logging.get_logger(__name__)
 _DESCRIPTION = "A generic image folder"
 
 
-try:
-    from datasets.tasks import ImageClassification
-    has_img_classification_task = True
-except ImportError as e:
-    has_img_classification_task = False
-
-
 class ImageFolder(datasets.GeneratorBasedBuilder):
     def _info(self):
 
@@ -28,11 +21,6 @@ class ImageFolder(datasets.GeneratorBasedBuilder):
             raise RuntimeError()
 
         classes = sorted([x.name.lower() for x in Path(folder).glob('*/**')])
-        
-        if has_img_classification_task:
-            task_templates = [datasets.tasks.ImageClassification(image_file_path_column="file", label_column="labels", labels=classes)]
-        else:
-            task_templates = None
 
         return datasets.DatasetInfo(
             description=_DESCRIPTION,
@@ -42,7 +30,6 @@ class ImageFolder(datasets.GeneratorBasedBuilder):
                     "labels": datasets.features.ClassLabel(names=classes)
                 }
             ),
-            task_templates=task_templates,
         )
 
     def _split_generators(self, dl_manager: datasets.DownloadManager) -> List[datasets.SplitGenerator]: