[release/3.3][RMSNorm] remove invvar from rms_norm Python API return value#78578

ShigureNyako wants to merge 1 commit intoPaddlePaddle:release/3.3PaddlePaddle/Paddle:release/3.3from

ShigureNyako:cherry-pick/78438/release/3.3ShigureNyako/Paddle:cherry-pick/78438/release/3.3Copy head branch name to clipboard