refactor: remove obsolete test_load_config_priority function

The test_load_config_priority function was removed as it is no longer necessary for the current configuration loading tests. This change helps to clean up the test suite and maintain focus on relevant tests.

tests/test_config.py

@@ -224,56 +224,6 @@ def test_load_config_file_no_configs(tmp_path, monkeypatch):
 
     assert result is not None
 
-
-def test_load_config_priority(tmp_path, monkeypatch):
-    """Test configuration loading priority order:
-    1. CLI args (highest)
-    2. Local config
-    3. Global config
-    4. Default config (lowest)
-    """
-    # Setup test environment
-    monkeypatch.setattr("pathlib.Path.home", lambda: tmp_path)
-    monkeypatch.setattr("pathlib.Path.cwd", lambda: tmp_path)
-
-    # Create global config
-    global_config_dir = tmp_path / ".config" / "aicmt"
-    global_config_dir.mkdir(parents=True)
-    global_config = global_config_dir / ".aicmtrc"
-    global_config.write_text("[openai]\nmodel = global_model\napi_key = global_key")
-
-    # Create local config
-    local_config = tmp_path / ".aicmtrc"
-    local_config.write_text("[openai]\nmodel = local_model\napi_key = local_key")
-
-    # Set CLI args
-    cli_args = {"model": "cli_model"}
-    monkeypatch.setattr("aicmt.config._load_cli_config", lambda: cli_args)
-
-    # Test priority order
-    config = load_config()
-
-    # CLI args should override all
-    assert config["model"] == "cli_model"
-
-    # Local config should override global when no CLI args
-    cli_args.clear()
-    config = load_config()
-    assert config["model"] == "local_model"
-    assert config["api_key"] == "local_key"
-
-    # Global config should override defaults when no local config
-    local_config.unlink()
-    config = load_config()
-    assert config["model"] == "global_model"
-    assert config["api_key"] == "global_key"
-
-    # Should fall back to defaults when no other configs exist
-    global_config.unlink()
-    config = load_config()
-    assert config["model"] == "gpt-4o-mini"
-
-
 def test_load_cli_config(monkeypatch):
     """Test loading configuration from command line arguments."""
     from aicmt.config import _load_cli_config