[CI/Build] Delete LoRA bias test (#14849)

Signed-off-by: Jee Jee Li <pandaleefree@gmail.com>

Author: jeejeelee

tests/lora/conftest.py

@@ -173,11 +173,6 @@ def sql_lora_files(sql_lora_huggingface_id):
     return snapshot_download(repo_id=sql_lora_huggingface_id)
 
 
-@pytest.fixture(scope="session")
-def lora_bias_files():
-    return snapshot_download(repo_id="followumesh/granite-3b-lora8-bias")
-
-
 @pytest.fixture(scope="session")
 def mixtral_lora_files():
     # Note: this module has incorrect adapter_config.json to test