fix llava config

Former-commit-id: b13d032325e45d401a9dbc64d4c73e308eff3288

src/llmtuner/model/utils/valuehead.py

@@ -8,7 +8,7 @@ from ...extras.logging import get_logger
 
 
 if TYPE_CHECKING:
-    from transformers import PretrainedConfig, PreTrainedModel
+    from transformers import PreTrainedModel
 
     from ...hparams import ModelArguments
 
@@ -16,11 +16,6 @@ if TYPE_CHECKING:
 logger = get_logger(__name__)
 
 
-def configure_valuehead(config: "PretrainedConfig") -> None:
-    if getattr(config, "model_type", None) == "llava":
-        setattr(config, "hidden_size", getattr(config.vision_config, "intermediate_size", None))
-
-
 def load_valuehead_params(path_or_repo_id: str, model_args: "ModelArguments") -> Dict[str, torch.Tensor]:
     r"""
     Loads value head parameters from Hugging Face Hub or local disk.