Remove support for to gh-pages

Author: thomcc

.github/workflows/main.yml

@@ -131,21 +131,3 @@ jobs:
     - name: Install Rust
       run: rustup update stable && rustup default stable && rustup component add rustfmt
     - run: cargo fmt -- --check
-
-  publish_docs:
-    name: Publish Documentation
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@master
-      - name: Install Rust
-        run: rustup update stable && rustup default stable
-      - name: Build documentation
-        run: cargo doc --no-deps --all-features
-      - name: Publish documentation
-        run: |
-          cd target/doc
-          git init
-          git add .
-          git -c user.name='ci' -c user.email='ci' commit -m init
-          git push -f -q https://git:${{ secrets.github_token }}@github.com/${{ github.repository }} HEAD:gh-pages
-        if: github.event_name == 'push' && github.event.ref == 'refs/heads/main'