test: remove eslint-disable comment from fixture file

Fixtures are not linted so eslint-disable comments are unnecessary.

PR-URL: https://github.com/nodejs/node/pull/39320


Reviewed-By: Zeyu Yang <himself65@outlook.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Darshan Sen <raisinten@gmail.com>