pytest_plugin(add_doctest_fixtures) Remove set_home (unused)

Author: tony

src/libvcs/pytest_plugin.py

@@ -708,7 +708,6 @@ def add_doctest_fixtures(
     request: pytest.FixtureRequest,
     doctest_namespace: dict[str, Any],
     tmp_path: pathlib.Path,
-    set_home: pathlib.Path,
     create_git_remote_repo: CreateRepoPytestFixtureFn,
     create_svn_remote_repo: CreateRepoPytestFixtureFn,
     create_hg_remote_repo: CreateRepoPytestFixtureFn,