Revert "add additional stream priority for cuda streams (#101956)"
This reverts commit 5da497cabbbef96061a7840ea7e5f10730ccc2a0.
Reverted https://github.com/pytorch/pytorch/pull/101956 on behalf of https://github.com/osalpekar due to Broke internal builds that used -Wunused-function since this PR removed the call to StreamIdType::<< ([comment](https://github.com/pytorch/pytorch/pull/101956#issuecomment-1563875493))
