refactor(docs): clean up deploy of static files (#18923)

.github/workflows/superset-docs.yml

@@ -27,7 +27,6 @@ jobs:
       - name: yarn build
         run: |
           yarn build
-          yarn copy-www-site-files
       - name: deploy docs
         if: github.ref == 'refs/heads/master'
         uses: ./.github/actions/github-action-push-to-another-repository

docs/package.json

@@ -4,7 +4,6 @@
   "private": true,
   "license": "Apache-2.0",
   "scripts": {
-    "copy-www-site-files": "cp static/resources/.asf.yaml static/resources/.htaccess build/",
     "docusaurus": "docusaurus",
     "start": "docusaurus start",
     "build": "docusaurus build",