Del comment deepspeed.zero.Init() can be used as a decorator (#3894)

Object deepspeed.zero.Init() is not callable, it can't be used
as a decorator. Delete this code comment to avoid misunderstanding.
Co-authored-by: NLogan Adams <114770087+loadams@users.noreply.github.com>

deepspeed/runtime/zero/partition_parameters.py

@@ -760,15 +760,6 @@ class Init(InsertPostInitMethodToModuleSubClasses):
             Initializes ``deepspeed.comm`` if it has not already been done so.
             See :meth:`deepspeed.init_distributed` for more information.
 
-        .. note::
-            Can also be used as a decorator:
-
-            .. code-block:: python
-
-                @deepspeed.zero.Init()
-                def get_model():
-                    return MyLargeModel()
-
         .. note::
             Only applicable to training with ZeRO-3.