# Description
This PR removes the building of the ORT "mobile" packages and much of the associated infrastructure which is no longer needed.
Not removed yet - tools/ci_build/github/android/mobile_package.required_operators.config and the helper scripts that depend on it.
# Motivation and Context
The mobile packages were deprecated in 1.18. Users should use the full packages (Android - onnxruntime-android, iOS - onnxruntime-c/onnxruntime-objc) instead or do a custom build.
Update Android package custom build script.
- Use later version of various dependencies (CMake, JDK, Android command line tools, Android NDK, Ubuntu). The CMake version was too old for the current ORT code.
- Do in-container build in a directory that is not shared with the host. Resolves some file permission issues and speeds up file access.
Add a nightly build to make sure the script works with the latest ORT.
