[roll] Roll fuchsia Revert "[sestarnix] Fix access checks for security attributes."

This reverts commit 1487f73cb5df446ec22f9cfe24d7457ee566846f.

Reason for revert: landed after flakes started

Original change's description:
> [sestarnix] Fix access checks for security attributes.
>
> Based on man xattr(7):
>        "Read and write access
>        permissions to security attributes depend on the policy
>        implemented for each security attribute by the security module.
>        When no security module is loaded, all processes have read access
>        to extended security attributes, and write access is limited to
>        processes that have the CAP_SYS_ADMIN capability."
>
> This CL fixes (get|set)_xattr to perform the correct checks for the security
> attributes.
>
> Original-Bug: 357812972, 372475639, 351195217
> BYPASS_INCLUSIVE_LANGUAGE_REASON: referring to the "Linux Manual Page" page
> Change-Id: I3405f1054e5530aed8309aac7284ee22597504ed
> Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1135433
> Reviewed-by: Wez <wez@google.com>
> Reviewed-by: Kevin Lindkvist <lindkvist@google.com>
> Commit-Queue: Nelly Vouzoukidou <nellyv@google.com>

Original-Bug: 357812972, 372475639, 351195217
Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1137473
Original-Revision: 11d3007a8e4a3492420a4e3d9640f06e8c9891ef
GitOrigin-RevId: b62ef152b6e34d57a72c6933a3ccc5935b2b5333
Change-Id: I0f7c08fa33833d090830ba721dff0c6e7f9608bc