Delete unnecessary linter option

Author: Splines

tests/eslint.test.config.js

@@ -82,9 +82,5 @@ module.exports = [
         disallowInAssignment: true,
       }],
     },
-    linterOptions: {
-      // see https://github.com/Splines/eslint-plugin-erb/releases/tag/v2.0.1
-      reportUnusedDisableDirectives: "off",
-    },
   },
 ];