ci: remove doc upload workflow

.github/workflows/upload-doc.yml

@@ -1,36 +0,0 @@
-name: Upload Documentation
-
-on:
-  push:
-    branches: [master]
-
-permissions:
-  contents: write
-
-concurrency:
-  group: ${{ github.workflow }}-${{ github.ref }}
-  cancel-in-progress: true
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-
-    steps:
-      - uses: actions/checkout@v4
-
-      - name: Install Rust (nightly)
-        uses: actions-rust-lang/setup-rust-toolchain@v1.9.0
-        with:
-          toolchain: nightly
-
-      - name: Build Docs
-        run: cargo doc --no-deps --workspace --all-features
-
-      - name: Tweak HTML
-        run: echo '<meta http-equiv="refresh" content="0;url=actix_cors/index.html">' > target/doc/index.html
-
-      - name: Deploy to GitHub Pages
-        uses: JamesIves/github-pages-deploy-action@v4.6.1
-        with:
-          folder: target/doc
-          branch: gh-pages