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7a4a126d - fix issue that training flux controlnet was unstable and validation r… (#11373)

fix issue that training flux controlnet was unstable and validation r… (#11373) * fix issue that training flux controlnet was unstable and validation results were unstable * del unused code pieces, fix grammar --------- Co-authored-by: Your Name <you@example.com> Co-authored-by: Sayak Paul <spsayakpaul@gmail.com>