onnxruntime

Minimize changes to fix missing symbols used from C# (#8867)

* Revert "Cleanup C# bindings to add EP (#8810)"

This reverts commit b21ea00020c7d9a1c3cfa3247ff9aeb2aacb579f.

* Add back in a minimal set of changes.
Provide stubs in for a limited set of things
  - things called from C# using a static lib of ORT built for mac/ios
  - things in OrtApis that are not included in the build by default
  - things in OrtApis that are excluded in a minimal build

* Cleanup order or EPs in test

* Fix unused function in ROCM build