Added missing parenthesis in call to is_fsdp_enabled (#25585)

Calling function is_fsdp_enabled instead of checking if it is not None

src/transformers/modeling_utils.py

@@ -468,7 +468,7 @@ def load_state_dict(checkpoint_file: Union[str, os.PathLike]):
         return safe_load_file(checkpoint_file)
     try:
         if (
-            (is_deepspeed_zero3_enabled() or is_fsdp_enabled)
+            (is_deepspeed_zero3_enabled() or is_fsdp_enabled())
             and torch.distributed.is_initialized()
             and torch.distributed.get_rank() > 0
         ):