Revert "[BE] Enables support for pytorch ci build in ARC + introduces _linux-build-rg.yml. (#121930)"
This reverts commit 11b36e163df66196d24fbded4b37ef8f8c032640.
Reverted https://github.com/pytorch/pytorch/pull/121930 on behalf of https://github.com/huydhn due to New action is breaking current ci in not rebased PRs ([comment](https://github.com/pytorch/pytorch/pull/121930#issuecomment-2004393980))
