fix: temporarily remove config validation check for backend (#3688)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

ludwig/config_validation/checks.py

@@ -596,7 +596,8 @@ def _get_llm_model_config(model_name: str) -> AutoConfig:
     return AutoConfig.from_pretrained(model_name)
 
 
-@register_config_check
+# TODO(geoffrey, arnav): uncomment this when we have reconciled the config with the backend kwarg in api.py
+# @register_config_check
 def check_llm_quantization_backend_incompatibility(config: "ModelConfig") -> None:  # noqa: F821
     """Checks that LLM model type with quantization uses the local backend."""
     if config.model_type != MODEL_LLM:

tests/ludwig/config_validation/test_checks.py

@@ -396,6 +396,9 @@ def test_retrieval_config_semantic_type():
     ModelConfig.from_dict(config)
 
 
+@pytest.mark.skip(
+    reason="TODO(geoffrey, arnav): re-enable this when we have reconciled the config with the backend kwarg in api.py"
+)
 def test_check_llm_quantization_backend_incompatibility():
     config = yaml.safe_load(
         """