Remove unused tmp_dir fixture from HintStore DB schema version test (#…

…16473)

tests/core/full_node/stores/test_hint_store.py

@@ -1,7 +1,6 @@
 from __future__ import annotations
 
 import logging
-from pathlib import Path
 from typing import Tuple
 
 import pytest
@@ -194,7 +193,7 @@ async def test_limits(db_version: int) -> None:
 
 
 @pytest.mark.asyncio
-async def test_unsupported_version(tmp_dir: Path) -> None:
+async def test_unsupported_version() -> None:
     with pytest.raises(RuntimeError, match="HintStore does not support database schema v1"):
         async with DBConnection(1) as db_wrapper:
             await HintStore.create(db_wrapper)