Revert "add docker grobid development build"

This reverts commit 44df68f.

.github/workflows/ci-build-unstable.yml

@@ -30,25 +30,3 @@ jobs:
           format: jacoco
           file: build/reports/jacoco/codeCoverageReport/codeCoverageReport.xml
           debug: true
-
-  docker-build:
-    needs: [build]
-    runs-on: ubuntu-latest
-
-    steps:
-      - name: Create more disk space
-        run: sudo rm -rf /usr/share/dotnet && sudo rm -rf /opt/ghc && sudo rm -rf "/usr/local/share/boost" && sudo rm -rf "$AGENT_TOOLSDIRECTORY"
-      - uses: actions/checkout@v2
-      - name: Build and push
-        id: docker_build
-        uses: mr-smithers-excellent/docker-build-push@v5
-        with:
-          username: ${{ secrets.DOCKERHUB_USERNAME }}
-          password: ${{ secrets.DOCKERHUB_TOKEN }}
-          image: lfoppiano/grobid
-          dockerfile: Dockerfile.crf
-          registry: docker.io
-          pushImage: ${{ github.event_name != 'pull_request' }}
-          tags: latest-develop
-      - name: Image digest
-        run: echo ${{ steps.docker_build.outputs.digest }}