message: Remove ppc64le daily build
  Remove ppc64le daily build due to lack of practical use cases
  and resources to maintain it.
diff: [![Build Status](https://img.shields.io/azure-devops/build/onnx-pipelines/onnx/7?label=Linux&logo=Azure-Pipelines)](https://dev.azure.com/onnx-pipelines/onnx/_build/latest?definitionId=7&branchName=master)
  [![Build Status](https://img.shields.io/azure-devops/build/onnx-pipelines/onnx/5?label=Windows&logo=Azure-Pipelines)](https://dev.azure.com/onnx-pipelines/onnx/_build/latest?definitionId=5&branchName=master)
  [![Build Status](https://img.shields.io/azure-devops/build/onnx-pipelines/onnx/6?label=MacOS&logo=Azure-Pipelines)](https://dev.azure.com/onnx-pipelines/onnx/_build/latest?definitionId=6&branchName=master)
  -[![Build Status](https://img.shields.io/jenkins/s/http/powerci.osuosl.org/onnx-ppc64le-nightly-build.svg?label=Linux%20ppc64le)](http://powerci.osuosl.org/job/onnx-ppc64le-nightly-build/)
  [![CII Best Practices](https://bestpractices.coreinfrastructure.org/projects/3313/badge)](https://bestpractices.coreinfrastructure.org/projects/3313)
  [Open Neural Network Exchange (ONNX)](https://onnx.ai) is an open ecosystem that empowers AI developers
  