Revert for Prod "temp for test: test decorator"

This reverts commit c6dc162.

Author: pablo-garay

megatron/core/distributed/distributed_data_parallel.py

@@ -7,7 +7,6 @@
 import torch
 
 from .. import parallel_state
-from ..backwards_compatibility_decorators import exempt_from_compat_check
 from ..config_logger import has_config_logger_enabled, log_config_to_disk
 from ..fp8_utils import is_float8tensor
 from ..process_groups_config import ProcessGroupCollection
@@ -21,7 +20,6 @@
 logger = logging.getLogger(__name__)
 
 
-@exempt_from_compat_check
 class DistributedDataParallel(_BaseDataParallel):
     """
     DDP wrapper which stores grads in contiguous buffers. Also has option of overlapping

megatron/core/model_parallel_config.py

@@ -4,11 +4,9 @@
 from dataclasses import dataclass
 from typing import Callable, ContextManager, Optional
 
-from .backwards_compatibility_decorators import exempt_from_compat_check
-
 import torch
 
-@exempt_from_compat_check
+
 @dataclass
 class ModelParallelConfig:
     """Base configuration for Megatron Core