remove github-sync.yml file

.github/workflows/github-sync.yml

@@ -1,23 +0,0 @@
-# File: .github/workflows/repo-sync.yml
-
-on:
-  schedule:
-  - cron:  "*/5 * * * *"
-  workflow_dispatch:
-
-jobs:
-  repo-sync:
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v4
-      with:
-        persist-credentials: false
-    - name: repo-sync
-      env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-      uses: repo-sync/github-sync@v2
-      with:
-        source_repo: "https://i2pgit.org/i2p-hackers/i2p.www"
-        source_branch: "master"
-        destination_branch: "master"
-        github_token: ${{ secrets.SYNC_PAT }}