test(text-splitters): resolve pytest marker warning (#33112)

#33111

Author: mdrxy

libs/text-splitters/tests/unit_tests/test_text_splitters.py

@@ -2365,7 +2365,6 @@ def test_haskell_code_splitter() -> None:
 
 
 @pytest.fixture
-@pytest.mark.requires("bs4")
 def html_header_splitter_splitter_factory() -> Callable[
     [list[tuple[str, str]]], HTMLHeaderTextSplitter
 ]: