Not clear why this didn't fail before...

tests/functional/test_install_cleanup.py

@@ -1,10 +1,7 @@
-import os
 from os.path import exists
 
 import pytest
 
-from pip._internal.cli.status_codes import PREVIOUS_BUILD_DIR_ERROR
-
 
 @pytest.mark.network
 @pytest.mark.xfail(
@@ -26,38 +23,6 @@ def test_no_clean_option_blocks_cleaning_after_install(script, data):
     assert exists(build)
 
 
-@pytest.mark.network
-def test_cleanup_prevented_upon_build_dir_exception(
-    script,
-    data,
-    use_new_resolver,
-):
-    """
-    Test no cleanup occurs after a PreviousBuildDirError
-    """
-    build = script.venv_path / 'build'
-    build_simple = build / 'simple'
-    os.makedirs(build_simple)
-    build_simple.joinpath("setup.py").write_text("#")
-    result = script.pip(
-        'install', '-f', data.find_links, '--no-index', 'simple',
-        '--build', build,
-        expect_error=(not use_new_resolver),
-        expect_temp=(not use_new_resolver),
-        expect_stderr=True,
-    )
-
-    assert (
-        "The -b/--build/--build-dir/--build-directory "
-        "option is deprecated."
-    ) in result.stderr
-
-    if not use_new_resolver:
-        assert result.returncode == PREVIOUS_BUILD_DIR_ERROR, str(result)
-        assert "pip can't proceed" in result.stderr, str(result)
-        assert exists(build_simple), str(result)
-
-
 @pytest.mark.network
 def test_pep517_no_legacy_cleanup(script, data, with_wheel):
     """Test a PEP 517 failed build does not attempt a legacy cleanup"""