transformers

effaef33 - fix: prevent second save in the end of training if last step was saved already (#36219)

fix: prevent second save in the end of training if last step was saved already (#36219) * fix: prevent second save in the end of training * fix: prevent second save in the end of training * test: added test for no duplicate save on epoch save strategy * fix: removed TrainerControl * chore: style formatting --------- Co-authored-by: JaktensTid <jaktenstid1@gmail.com>