[CI] deleted workflows

.github/workflows/build.yml

@@ -1,55 +0,0 @@
-name: CI
-
-on: [push, pull_request]
-
-jobs:
-  build:
-    name: Build
-    strategy:
-      matrix:
-        go-version: [~1.13, ~1.14]
-        os: [ubuntu-latest, macos-latest]
-    runs-on: ${{ matrix.os }}
-    env:
-      GO111MODULE: "on"
-    steps:
-      - name: Install Go
-        uses: actions/setup-go@v2
-        with:
-          go-version: ${{ matrix.go-version }}
-
-      - name: Cache-Go
-        uses: actions/cache@v1
-        with:
-          path: |
-            ~/go/pkg/mod              # Module download cache
-            ~/.cache/go-build         # Build cache (Linux)
-            ~/Library/Caches/go-build # Build cache (Mac)
-          key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
-          restore-keys: |
-            ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
-
-      - name: Checkout code
-        uses: actions/checkout@v2
-
-      - name: Download Go modules
-        run: go mod download
-
-      - name: Install Linux Dependencies
-        if: matrix.os == 'ubuntu-latest'
-        run: |
-          sudo apt-get install -y xdg-utils
-
-      - name: Run Makefile
-        id: makefile
-        run: |
-          make demo1
-          make demo2
-          make demo3
-          make demo4
-          make demo5
-        continue-on-error: true
-
-      - name: Check on failures
-        if: steps.makefile.outputs.status == 'failure'
-        run: exit 1