Remove deploy workflow since Netlify is used

.github/workflows/ci.yml

@@ -8,7 +8,7 @@ env:
 on: [push, pull_request]
 
 jobs:
-  build:
+  test:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
@@ -21,8 +21,13 @@ jobs:
           python-version: '${{ env.PYTHON_VERSION }}'
           architecture: 'x64'
 
+      - name: Set up Node.js
+        uses: actions/setup-node@v1
+        with:
+          node-version: "${{ env.NODE }}"
+
       - name: Cache dependencies
-        uses: actions/cache@v1
+        uses: actions/cache@v2
         with:
           path: ~/.cache/pip
           key: ${{ runner.os }}-pip-${{ env.PYTHON_VERSION }}-${{ hashFiles('**/requirements.txt') }}
@@ -33,56 +38,11 @@ jobs:
       - name: Install Python dependencies
         run: python3 -m pip install -r requirements.txt
 
-      - name: Build docs
-        run: mkdocs build --clean
-
-      - name: Upload docs
-        uses: actions/upload-artifact@v1
-        with:
-          name: docs
-          path: ./site/
-
-  test:
-    runs-on: ubuntu-latest
-    needs: build
-    steps:
-      - uses: actions/checkout@v2
-
-      - name: Set up Node.js
-        uses: actions/setup-node@v1
-        with:
-          node-version: "${{ env.NODE }}"
-
       - name: Install npm dependencies
         run: npm ci
 
-      - name: Download docs
-        uses: actions/download-artifact@v1
-        with:
-          name: docs
-          path: ./site/
+      - name: Build docs
+        run: mkdocs build
 
       - name: Test
         run: npm test
-
-  deploy:
-    runs-on: ubuntu-latest
-    needs: [build, test]
-    if: github.ref == 'refs/heads/master'
-
-    steps:
-      - uses: actions/checkout@v2
-
-      - name: Download docs
-        uses: actions/download-artifact@v1
-        with:
-          name: docs
-          path: ./site/
-
-      - name: Deploy
-        uses: peaceiris/actions-gh-pages@v3
-        with:
-          emptyCommits: false
-          personal_token: ${{ secrets.PERSONAL_TOKEN }}
-          publish_branch: gh-pages
-          publish_dir: ./site/