test: remove eslint-disable comment from fixture file

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

PR-URL: #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>

test/fixtures/test-resolution-inspect-brk-resolver.js

@@ -1,5 +1,4 @@
 'use strict';
-// eslint-disable-next-line no-unused-vars
 const common = require('../common');
 
 require.extensions['.ext'] = require.extensions['.js'];