Remove unchanged labels from sample

Closes #80 (closed)

dan/manager/dataset.py

@@ -268,7 +268,6 @@ class GenericDataset(Dataset):
                     {
                         "name": os.path.basename(filename),
                         "label": label,
-                        "unchanged_label": label,
                         "path": os.path.abspath(filename),
                     }
                 )