ci(idle-issues): remove permissions

We will remove this workflow.

Author: caugner

.github/workflows/idle-issues.yml

@@ -3,12 +3,6 @@ on:
   schedule:
     - cron: "49 11,23 * * *"
 
-# See: https://github.com/actions/stale#recommended-permissions
-permissions:
-  actions: write
-  issues: write
-  pull-requests: write
-
 jobs:
   idle:
     uses: mdn/workflows/.github/workflows/idle.yml@main