Update src/zarr/testing/store.py

Author: TomAugspurger

src/zarr/testing/store.py

@@ -286,7 +286,6 @@ async def test_setdefault(self, store: S) -> None:
         assert result == data_buf
 
         await store.setdefault("k2", new)  # no error
-        await store.get("k2", default_buffer_prototype())
 
         result = await store.get("k2", default_buffer_prototype())
         assert result == new