fix(HTML): remove an unnecessary print command

Signed-off-by: Cesar Berrospi Ramis <75900930+ceberam@users.noreply.github.com>

docling/backend/html_backend.py

@@ -1,6 +1,5 @@
 import logging
 import re
-import traceback
 from io import BytesIO
 from pathlib import Path
 from typing import Final, Optional, Union, cast
@@ -144,11 +143,7 @@ class HTMLDocumentBackend(DeclarativeDocumentBackend):
         )
         # reset context
         self.ctx = _Context()
-
-        try:
         self._walk(content, doc)
-        except Exception:
-            print(traceback.format_exc())
 
         return doc