[DLMED] remove out-date comment

Signed-off-by: Nic Ma <[email protected]>

Author: Nic-Ma

monai/data/thread_buffer.py

@@ -88,6 +88,5 @@ def __init__(self, dataset: Dataset, num_workers: int = 0, **kwargs):
         super().__init__(dataset, num_workers, **kwargs)
 
     def __iter__(self):
-        # ThreadBuffer will use the inherited __iter__ instead of the one defined below
         buffer = ThreadBuffer(super().__iter__())
         yield from buffer