Delete unused action

.github/workflows/ci.yml

@@ -1,38 +0,0 @@
-name: Deploy
-on:
-  push:
-    branches:
-      - main
-
-jobs:
-  deploy:
-    runs-on: ubuntu-latest
-    permissions:
-      contents: write
-      pages: write
-      id-token: write
-    steps:
-      - uses: actions/checkout@v4
-        with:
-          fetch-depth: 0
-      - name: Install latest mdbook
-        run: |
-          tag=$(curl 'https://api.github.com/repos/rust-lang/mdbook/releases/latest' | jq -r '.tag_name')
-          url="https://github.com/rust-lang/mdbook/releases/download/${tag}/mdbook-${tag}-x86_64-unknown-linux-gnu.tar.gz"
-          mkdir mdbook
-          curl -sSL $url | tar -xz --directory=./mdbook
-          echo `pwd`/mdbook >> $GITHUB_PATH
-      - name: Build Book
-        run: |
-          # This assumes your book is in the root of your repository.
-          # Just add a `cd` here if you need to change to another directory.
-          mdbook build
-      - name: Setup Pages
-        uses: actions/configure-pages@v4
-      - name: Upload artifact
-        uses: actions/upload-pages-artifact@v3
-        with:
-          path: 'book'
-      - name: Deploy to GitHub Pages
-        id: deployment
-        uses: actions/deploy-pages@v4