[test] support slow skip and device skip in Uts (#9484)

tests/model/test_lora.py

@@ -23,7 +23,6 @@ from llamafactory.train.test_utils import (
     load_infer_model,
     load_reference_model,
     load_train_model,
-    patch_valuehead_model,
 )
 
 
@@ -56,11 +55,6 @@ INFER_ARGS = {
 }
 
 
-@pytest.fixture
-def fix_valuehead_cpu_loading():
-    patch_valuehead_model()
-
-
 def test_lora_train_qv_modules():
     model = load_train_model(lora_target="q_proj,v_proj", **TRAIN_ARGS)
     linear_modules, _ = check_lora_model(model)