FIXUP: remove test_archive_is_called() test

Test became obsolete with the removal of archive() call from
Document.mark_as_safe().

tests/test_document.py

@@ -96,15 +96,6 @@ def test_archive_unwriteable_dir(sample_doc: str, tmp_path: Path) -> None:
         d.validate_default_archive_dir()
 
 
-def test_archive_is_called(mocker: MagicMock, sample_doc: str) -> None:
-    d = Document(sample_doc, archive=True)
-    d.archive = mocker.MagicMock()  # type: ignore [assignment]
-
-    # archive should be called after conversion
-    d.mark_as_safe()
-    d.archive.assert_called_once()  # type: ignore [attr-defined]
-
-
 def test_archive(mocker: MagicMock, tmp_path: Path) -> None:
     test_string = "original file"
     original_doc_path = str(tmp_path / "doc.pdf")