[Core] pass revision in the loading_kwargs. (#7019)

* pass revision in the loading_kwarhs.

* remove revision from load_sub_model.

src/diffusers/pipelines/pipeline_utils.py

@@ -436,7 +436,6 @@ def load_sub_model(
     variant: str,
     low_cpu_mem_usage: bool,
     cached_folder: Union[str, os.PathLike],
-    revision: str = None,
 ):
     """Helper method to load the module `name` from `library_name` and `class_name`"""
     # retrieve class candidates
@@ -504,6 +503,7 @@ def load_sub_model(
         loading_kwargs["offload_folder"] = offload_folder
         loading_kwargs["offload_state_dict"] = offload_state_dict
         loading_kwargs["variant"] = model_variants.pop(name, None)
+
         if from_flax:
             loading_kwargs["from_flax"] = True
 
@@ -1280,7 +1280,6 @@ class DiffusionPipeline(ConfigMixin, PushToHubMixin):
                     variant=variant,
                     low_cpu_mem_usage=low_cpu_mem_usage,
                     cached_folder=cached_folder,
-                    revision=revision,
                 )
                 logger.info(
                     f"Loaded {name} as {class_name} from `{name}` subfolder of {pretrained_model_name_or_path}."