Fix test bug

Author: ivanmkc

tests/unit/aiplatform/test_training_jobs.py

@@ -1672,7 +1672,6 @@ def test_run_call_pipeline_service_create_with_nontabular_dataset_without_model_
  machine_type=_TEST_MACHINE_TYPE,
  accelerator_type=_TEST_ACCELERATOR_TYPE,
  accelerator_count=_TEST_ACCELERATOR_COUNT,
- model_display_name=_TEST_MODEL_DISPLAY_NAME,
  training_filter_split=_TEST_TRAINING_FILTER_SPLIT,
  validation_filter_split=_TEST_VALIDATION_FILTER_SPLIT,
  test_filter_split=_TEST_TEST_FILTER_SPLIT,