Remove sync file

.github/workflows/sync.yml

@@ -1,26 +0,0 @@
-name: Sync fork
-  
-permissions:
-  contents: write
-
-on:
-  schedule:
-    - cron: "0 0 * * *"
-  workflow_dispatch:
-
-jobs:
-  sync:
-    name: Sync fork
-    runs-on: ubuntu-latest
-    if: ${{ github.event.repository.fork }}
-
-    steps:
-      - name: Checkout code
-        uses: actions/checkout@v4
-
-      - name: Sync fork
-        run: gh repo sync ${{ github.repository }}
-        env:
-          GH_TOKEN: ${{ github.token }}
-
-      - uses: gautamkrishnar/keepalive-workflow@v1