ci: remove updates.xml steps from pre-release (MokoGitea handles it)

MokoGitea license server generates updates.xml dynamically.
Removed: updates_xml_build.php call, updates.xml commit/push,
updates.xml branch sync. These are no longer needed.

Authored-by: Moko Consulting
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.mokogitea/workflows/pre-release.yml

@@ -204,55 +204,8 @@ jobs:
             --token "${{ secrets.MOKOGITEA_TOKEN }}" --api-base "$API_BASE" \
             --repo "${GITEA_REPO}" --output /tmp || true
 
-      - name: Update updates.xml
-        if: steps.platform.outputs.platform == 'joomla'
-        run: |
-          VERSION="${{ steps.meta.outputs.version }}"
-          STABILITY="${{ steps.meta.outputs.stability }}"
-          SHA256="${{ steps.package.outputs.sha256_zip }}"
-
-          if [ ! -f "updates.xml" ]; then
-            echo "No updates.xml -- skipping"
-            exit 0
-          fi
-
-          SHA_FLAG=""
-          [ -n "$SHA256" ] && SHA_FLAG="--sha ${SHA256}"
-
-          php ${MOKO_CLI}/updates_xml_build.php \
-            --path . --version "${VERSION}" --stability "${STABILITY}" \
-            --gitea-url "${GITEA_URL}" --org "${GITEA_ORG}" --repo "${GITEA_REPO}" \
-            ${SHA_FLAG}
-
-          # Commit and push
-          if ! git diff --quiet updates.xml 2>/dev/null; then
-            git config --local user.email "gitea-actions[bot]@mokoconsulting.tech"
-            git config --local user.name "gitea-actions[bot]"
-            git add updates.xml
-            git commit -m "chore: update ${STABILITY} channel ${VERSION} [skip ci]"
-            git push origin HEAD 2>&1 || echo "WARNING: push failed"
-          fi
-
-      - name: "Sync updates.xml to all branches"
-        if: steps.platform.outputs.platform == 'joomla'
-        run: |
-          CURRENT_BRANCH="${{ github.ref_name }}"
-          git config --local user.email "gitea-actions[bot]@mokoconsulting.tech"
-          git config --local user.name "gitea-actions[bot]"
-
-          for BRANCH in main dev; do
-            [ "$BRANCH" = "$CURRENT_BRANCH" ] && continue
-            echo "Syncing updates.xml -> ${BRANCH}"
-            git fetch origin "${BRANCH}" 2>/dev/null || continue
-            git checkout "origin/${BRANCH}" -- updates.xml 2>/dev/null || continue
-            git checkout "${CURRENT_BRANCH}" -- updates.xml
-            if ! git diff --quiet updates.xml 2>/dev/null; then
-              git add updates.xml
-              git commit -m "chore: sync updates.xml from ${CURRENT_BRANCH} [skip ci]"
-              git push origin HEAD:refs/heads/${BRANCH} 2>&1 || echo "WARNING: push to ${BRANCH} failed"
-            fi
-            git checkout "${CURRENT_BRANCH}" 2>/dev/null
-          done
+      # updates.xml is generated dynamically by MokoGitea license server
+      # No need to build, commit, or sync updates.xml from workflows
 
       - name: "Delete lesser pre-release channels (cascade)"
         continue-on-error: true