Delete Dockerfile
Remove the existing Dockerfile from the auto-devops-FREEZE
branch because it doesn't build the project but simply copies the POM XML file. By removing the Dockerfile we entirely rely on Auto Build, which properly installs the project dependencies. See https://gitlab.com/gitlab-org/security-products/tests/java-maven/-/jobs/461787677#L227
For some context, I need the Docker image generated by the build
job to contain the project dependencies, to experiment with extracting the build from the scanning job, as described in gitlab-org/gitlab#13477 (closed). cc @plafoucriere