remove unused tmp_path

Author: hukkin

tests/test_api.py

@@ -143,6 +143,6 @@ def test_mdrenderer_no_finalize(tmp_path):
     assert finalized == unfinalized + "\n\n[gl ref]: https://gitlab.com\n"
 
 
-def test_ascii_whitespace_deprecation(tmp_path):
+def test_ascii_whitespace_deprecation():
     with pytest.warns(DeprecationWarning):
         mdformat.codepoints.ASCII_WHITESPACE