We need PYTEST_DISABLE_PLUGIN_AUTOLOAD so we do not load all installed pytest plugins.

--- platformdirs-4.13.6/tests/test_pytest_plugin.py.orig
+++ platformdirs-4.13.6/tests/test_pytest_plugin.py
@@ -37,7 +37,6 @@
     ],
 )
 def test_import_before_pytest_main(tmp_path: Path, invocation: str, monkeypatch: pytest.MonkeyPatch) -> None:
-    monkeypatch.delenv("PYTEST_DISABLE_PLUGIN_AUTOLOAD", raising=False)
     monkeypatch.delenv("PYTEST_ADDOPTS", raising=False)
     (tmp_path / "test_example.py").write_text(
         "from pathlib import Path\n"