[test] Removes 'test_pylint_config_attr' (#8468)

See fc0ed97, it's not relevant anymore.

Author: Pierre-Sassoulas

tests/test_regr.py

@@ -16,7 +16,6 @@
 from os.path import abspath, dirname, join
 from typing import cast
 
-import astroid
 import pytest
 
 from pylint import testutils
@@ -122,28 +121,6 @@ def test_check_package___init__(finalize_linter: PyLinter) -> None:
     assert checked == ["__init__"]
 
 
-# TODO: 3.0: Test are broken because of property shenanigans of config attribute
-# Re-enable after some of the old attributes have been removed after deprecation period
-@pytest.mark.xfail
-def test_pylint_config_attr() -> None:
-    mod = astroid.MANAGER.ast_from_module_name("pylint.lint.pylinter")
-    pylinter = mod["PyLinter"]
-    expect = [
-        "_ArgumentsManager",
-        "object",
-        "ReportsHandlerMixIn",
-        "BaseTokenChecker",
-        "BaseChecker",
-        "_ArgumentsProvider",
-    ]
-    assert [c.name for c in pylinter.ancestors()] == expect
-    assert list(astroid.Instance(pylinter).getattr("config"))
-    inferred = list(astroid.Instance(pylinter).igetattr("config"))
-    assert len(inferred) >= 1
-    assert inferred[0].root().name == "argparse"
-    assert inferred[0].name == "Namespace"
-
-
 @pytest.mark.timeout(30)
 @pytest.mark.parametrize("file_names", ([join(REGR_DATA, "hang", "pkg4972.string")],))
 def test_hang(finalize_linter: PyLinter, file_names: list[str]) -> None: