Optimize the speed of the truncate_sequences function. (#28263)
* change truncate_sequences
* Update tokenization_utils_base.py
* change format
* fix when ids_to_move=0
* fix
* Update src/transformers/tokenization_utils_base.py
Co-authored-by: Arthur <48595927+ArthurZucker@users.noreply.github.com>
---------
Co-authored-by: Arthur <48595927+ArthurZucker@users.noreply.github.com>