test: remove unnecessary eslint-disable comments

PR-URL: https://github.com/nodejs/node/pull/25119
Refs: https://eslint.org/docs/user-guide/command-line-interface#--report-unused-disable-directives


Reviewed-By: Teddy Katz <teddy.katz@gmail.com>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>