Address code review feedback: remove duplicate comment, simplify assignment

Co-authored-by: owndev <69784886+owndev@users.noreply.github.com>

Author: Copilot

pipelines/azure/azure_ai_foundry.py

@@ -1515,7 +1515,6 @@ def replace_ref(m, urls_map):
                 except Exception as process_err:
                     log.debug(f"Error processing streaming chunk: {process_err}")
                     # Fall through to yield original chunk
-                    # Fall through to yield original chunk
 
                 # Yield the (possibly modified) chunk
                 yield chunk