BLOOM minor changes on tokenizer (#17823)
* few fixes:
- hardcode tokenizer padding side
- remove unused args
* few fixes:
- added new attribute on TokenizerTesterMixin
- added new slow test
- remove unused arg on tokenizer class
* make style
* Update src/transformers/models/bloom/tokenization_bloom_fast.py
Co-authored-by: SaulLu <55560583+SaulLu@users.noreply.github.com>
* make quality
* apply changes
- remove new attribute
- redefine test on the class
* add comments
Co-authored-by: SaulLu <55560583+SaulLu@users.noreply.github.com>