Simplify workflows

Author: muan

.github/workflows/nodejs.yml

@@ -3,17 +3,8 @@ name: Node CI
 on: push
 jobs:
   build:
-    runs-on: ${{ matrix.os }}
-
-    strategy:
-      fail-fast: false
-      matrix:
-        os: [ubuntu-latest, windows-latest, macos-latest]
-
+    runs-on: ubuntu-latest
     steps:
-    - name: Set git to not change EoL
-      run: |
-        git config --global core.autocrlf false
     - uses: actions/checkout@v2
     - name: Use Node.js 12.x
       uses: actions/setup-node@v1
@@ -22,7 +13,6 @@ jobs:
     - name: npm install, build, and test
       run: |
         npm install
-        npm run build --if-present
         npm test
       env:
         CI: true