Remove deploy workflow (#436)

.github/workflows/deploy.yml

@@ -1,24 +0,0 @@
-name: Deploy to GitHub Pages
-
-on:
-  push:
-    branches:
-      - master
-jobs:
-  build-and-deploy:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v1
-
-      - name: Build
-        run: |
-          npm ci
-          npm run build
-
-      - name: Deploy
-        uses: JamesIves/github-pages-deploy-action@releases/v3
-        with:
-          ACCESS_TOKEN: ${{secrets.GH_DEPLOY}}
-          GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}
-          BRANCH: gh-pages
-          FOLDER: build