#23 Remove redundant pipeline section

The `sed` command is not working as expected because of some permission issues.
This commit removes this section from the pipeline, because another solution is
implemented which does not require this step.

.github/workflows/jekyll-gh-pages.yml

@@ -29,11 +29,6 @@ jobs:
         with:
           source: ./
           destination: ./_site
-      - name: Modify Permissions
-        run: chmod -R u+rwX,go+rX,go-w ./_site
-      - name: Insert JS snippet
-        run: |
-          find ./_site -name '*.html' -exec sed -i 's|</body>|<script>document.addEventListener("DOMContentLoaded", function() {const links = document.querySelectorAll("a[href^=\\"./exams/\\"]");links.forEach(link => {const code = link.getAttribute("href").slice(8);link.href = `https://github.com/skipgu/past-exams/tree/main/exams/${code}`;});});</script>\n</body>|g' {} +
       - name: Upload artifact
         uses: actions/upload-pages-artifact@v2