Codecov has shown to be flaky, and calculate the wrong diff, in
addition, it doesn't show coverage for integration tests, which
makes the coverage report not useful.
Removing it for now, while we look at alternatives.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This commit uses the exitings jenkins freestyle job configuration to
create a jenkinsfile. This allows the project to use multi-branch
pipelines in Jenkins and to allow others to contribute to the CI setup.
Signed-off-by: Dave Tucker <dt@docker.com>