remove useless file

.github/workflows/build-dockerimage.yml

@@ -1,41 +0,0 @@
-name: GitHub Actions Demo
-on: [push]
-
-env:
-  IMAGE_NAME: ghtoken_product_demo
-
-jobs:
-  # Push image to GitHub Packages.
-  # See also https://docs.docker.com/docker-hub/builds/
-  push:
-    runs-on: ubuntu-latest
-    permissions:
-      packages: write
-      contents: read
-
-    steps:
-      - uses: actions/checkout@v2
-
-      - name: Build image
-        run: docker build . --file Dockerfile --tag $IMAGE_NAME --label "runnumber=${GITHUB_RUN_ID}"
-
-      - name: Log in to registry
-        # This is where you will update the PAT to GITHUB_TOKEN
-        run: echo "${{ secrets.GITHUB_TOKEN }}" | docker login ghcr.io -u ${{ github.actor }} --password-stdin
-
-      - name: Push image
-        run: |
-          IMAGE_ID=ghcr.io/${{ github.repository_owner }}/$IMAGE_NAME
-
-          # Change all uppercase to lowercase
-          IMAGE_ID=$(echo $IMAGE_ID | tr '[A-Z]' '[a-z]')
-          # Strip git ref prefix from version
-          VERSION=$(echo "${{ github.ref }}" | sed -e 's,.*/\(.*\),\1,')
-          # Strip "v" prefix from tag name
-          [[ "${{ github.ref }}" == "refs/tags/"* ]] && VERSION=$(echo $VERSION | sed -e 's/^v//')
-          # Use Docker `latest` tag convention
-          [ "$VERSION" == "master" ] && VERSION=latest
-          echo IMAGE_ID=$IMAGE_ID
-          echo VERSION=$VERSION
-          docker tag $IMAGE_NAME $IMAGE_ID:$VERSION
-          docker push $IMAGE_ID:$VERSION