docs: remove GitHub pages site

.github/workflows/docs-page-action.yml

@@ -1,50 +0,0 @@
-name: 'Deploy GitHub Pages'
-
-on:
-  push:
-    tags: 'v*'
-  workflow_dispatch:
-
-permissions:
-  contents: 'read'
-  pages: 'write'
-  id-token: 'write'
-
-# Allow only one concurrent deployment, skipping runs queued between the run
-# in-progress and latest queued. However, do NOT cancel in-progress runs as we
-# want to allow these production deployments to complete.
-concurrency:
-  group: '${{ github.workflow }}'
-  cancel-in-progress: false
-
-jobs:
-  build:
-    if: "github.repository == 'google-gemini/gemini-cli' && !contains(github.ref_name, 'nightly')"
-    runs-on: 'ubuntu-latest'
-    steps:
-      - name: 'Checkout'
-        uses: 'actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8' # ratchet:actions/checkout@v5
-
-      - name: 'Setup Pages'
-        uses: 'actions/configure-pages@983d7736d9b0ae728b81ab479565c72886d7745b' # ratchet:actions/configure-pages@v5
-
-      - name: 'Build with Jekyll'
-        uses: 'actions/jekyll-build-pages@44a6e6beabd48582f863aeeb6cb2151cc1716697' # ratchet:actions/jekyll-build-pages@v1
-        with:
-          source: './'
-          destination: './_site'
-
-      - name: 'Upload artifact'
-        uses: 'actions/upload-pages-artifact@56afc609e74202658d3ffba0e8f6dda462b719fa' # ratchet:actions/upload-pages-artifact@v3
-
-  deploy:
-    if: "github.repository == 'google-gemini/gemini-cli'"
-    environment:
-      name: 'github-pages'
-      url: '${{ steps.deployment.outputs.page_url }}'
-    runs-on: 'ubuntu-latest'
-    needs: 'build'
-    steps:
-      - name: 'Deploy to GitHub Pages'
-        id: 'deployment'
-        uses: 'actions/deploy-pages@d6db90164ac5ed86f2b6aed7e0febac5b3c0c03e' # ratchet:actions/deploy-pages@v4