refactor: Remove script-based ACR publish (moved to AAPT-Antares-Oryx OneBranch pipeline)

Remove publishSdkImageToAcr.sh and publishSdkToAcr.yml since SDK images
are now built and pushed using onebranch.pipeline.imagebuildinfo in
the AAPT-Antares-Oryx pipeline, not via custom scripts.

Author: Sarath chandra Bussa