chore: remove unused eslint directives (#7803)

**Motivation**

Remove any unused or inactive codebase.

**Description**

Remove all unused eslint directives as we are using `biome` now. 

**Steps to test or reproduce**

Run lint rules and all tests

packages/params/test/e2e/overridePresetOk.ts

@@ -1,6 +1,5 @@
 import assert from "node:assert";
 
-/* eslint import/order: "off" */
 // This script is should be run in an e2e !!
 // It demonstrates how to properly change the Lodestar preset safely
 

packages/params/test/e2e/setPresetOk.ts

@@ -1,4 +1,3 @@
-/* eslint import/order: "off" */
 // This script is should be run in an e2e !!
 // It demostrates how to properly change the Lodestar preset safely