Require input_ids for repetition penalty (#45389)
* Guard repetition penalty for inputs_embeds
* Move repetition penalty guard to logits processor
* only warn that repetition processor wont apply to prompt when input embeds are provided but not input ids
* fix all the uneccesary if/else
* fix test
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Co-authored-by: Cyril Vallez <cyril.vallez@gmail.com>
