fix(docfx): remove redundant standalone cleanup step

.github/workflows/docfx.yaml

@@ -225,66 +225,6 @@ jobs:
             Set-Content -Path 'docfx_project/_site/versions.json' -Encoding utf8NoBOM
           Write-Host "Generated versions.json with $($versions.Count) version(s): $($versions | ForEach-Object { $_.version })"
 
-      - name: Clean up stale root files from gh-pages
-        # Before deploying the latest docs to the site root, remove any pre-existing
-        # root-level files and folders from the gh-pages branch (except the versions/
-        # directory, CNAME, and .nojekyll) so that stale DocFX assets from a previous
-        # build do not linger on the live site.
-        # The versions/ folder is preserved so that all versioned docs remain accessible
-        # while the root is refreshed with the new build.
-        if: inputs.deploy_to_pages != false && inputs.deploy_as_latest != false
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        shell: pwsh
-        run: |
-          $branchExists = git ls-remote --heads origin gh-pages
-          if (-not $branchExists) {
-            Write-Host "ℹ️ gh-pages branch does not exist yet – skipping stale-file cleanup."
-            exit 0
-          }
-
-          git config --global user.email "github-actions[bot]@users.noreply.github.com"
-          git config --global user.name "github-actions[bot]"
-          git remote set-url origin "https://x-access-token:$($env:GITHUB_TOKEN)@github.com/$($env:GITHUB_REPOSITORY).git"
-
-          git fetch origin gh-pages
-          # Create a local tracking branch only if it does not already exist
-          git show-ref --verify --quiet refs/heads/gh-pages
-          if ($LASTEXITCODE -ne 0) {
-            git branch gh-pages origin/gh-pages
-          }
-
-          $WORK_DIR = Join-Path $env:RUNNER_TEMP 'gh-pages-clean'
-          # Remove a leftover worktree from a previous failed run, if any
-          git worktree remove "$WORK_DIR" --force 2>&1 | Out-Null
-          if (Test-Path $WORK_DIR) { Remove-Item $WORK_DIR -Recurse -Force }
-          git worktree add "$WORK_DIR" gh-pages
-
-          # Remove all root-level items EXCEPT:
-          #   .git         – Git metadata (worktree pointer file)
-          #   CNAME        – Custom domain config (if present)
-          #   .nojekyll    – Tells GitHub Pages not to run Jekyll
-          #   versions/    – All versioned docs (v1.0.0/, latest/, etc.)
-          Get-ChildItem -Path $WORK_DIR -Force | Where-Object {
-            $_.Name -ne '.git' -and
-            $_.Name -ne 'CNAME' -and
-            $_.Name -ne '.nojekyll' -and
-            $_.Name -ne 'versions'
-          } | Remove-Item -Recurse -Force
-
-          git -C "$WORK_DIR" add -A
-          git -C "$WORK_DIR" diff --cached --quiet
-          if ($LASTEXITCODE -ne 0) {
-            git -C "$WORK_DIR" commit `
-              -m "chore: clean up stale root DocFX assets before redeploy [skip ci]"
-            git -C "$WORK_DIR" push origin HEAD:gh-pages
-            Write-Host "✅ Stale root files removed from gh-pages."
-          } else {
-            Write-Host "ℹ️ No stale files found in gh-pages root – nothing to clean."
-          }
-
-          git worktree remove "$WORK_DIR" --force
-
       - name: Compute destination directory
         # Determines the versioned subfolder name for the docs deployment (e.g. /v1.2.3/).
         # Uses the explicit 'version' input when provided; otherwise falls back to