i#4111 web: Remove deployment to dynamorio_docs

The dynamorio_docs repository has been deleted and we now only deploy
embedded docs to the dynamorio.github.io repository.

Issue: #4111

.github/workflows/ci-docs.yml

@@ -105,18 +105,6 @@ jobs:
         DEPLOY_DOCS: yes
         DYNAMORIO_CROSS_AARCHXX_LINUX_ONLY: no
 
-    # XXX i#4111: Delete this step and the dynamorio_docs repository once
-    # we're happy with the embedded version.
-    - name: Deploy Standalone Docs
-      uses: crazy-max/ghaction-github-pages@v2
-      with:
-        build_dir: html
-        repo: DynamoRIO/dynamorio_docs
-        target_branch: master
-      env:
-        # We need a personal access token for write access to another repo.
-        GH_PAT: ${{ secrets.DOCS_TOKEN }}
-
     - name: Check Out Web
       uses: actions/checkout@v2
       with: