remove github workflow

.github/workflows/fly-deploy.yml

@@ -1,18 +0,0 @@
-# See https://fly.io/docs/app-guides/continuous-deployment-with-github-actions/
-
-name: Fly Deploy
-on:
-  push:
-    branches:
-      - main
-jobs:
-  deploy:
-    name: Deploy app
-    runs-on: ubuntu-latest
-    concurrency: deploy-group    # optional: ensure only one action runs at a time
-    steps:
-      - uses: actions/checkout@v4
-      - uses: superfly/flyctl-actions/setup-flyctl@master
-      - run: flyctl deploy --remote-only
-        env:
-          FLY_API_TOKEN: ${{ secrets.FLY_API_TOKEN }}