NXP backend: Remove residual onnx references#14457

MartinPavella merged 2 commits intopytorch:mainpytorch/executorch:mainfrom

nxp-upstream:upstream/main-nxp/EIEX-542-remove-residual-onnx-referencesnxp-upstream/executorch:upstream/main-nxp/EIEX-542-remove-residual-onnx-referencesCopy head branch name to clipboard