fix(quarto_publish): remove the gh-pages branch bit

Author: amyheather

.github/workflows/quarto_publish.yml

@@ -15,11 +15,6 @@ jobs:
       - name: Check out repository
         uses: actions/checkout@v4
 
-      - name: Initialise gh-pages on origin
-        run: |
-          echo "Pushing current commit to origin/gh-pages (creates or updates)"
-          git push origin HEAD:gh-pages
-
       - name: Set up Quarto
         uses: quarto-dev/quarto-actions/setup@v2