Our setup has some of Blue Ocean plugins to enhance the presentation of Pipeline Jobs.

The plugin Pipeline implementation for Blue Ocean (blueocean-pipeline-api-impl) forces a dependency upon the github-branch-source plugin in its pom.xml:

        <!-- Not needed by blueocean runtime but adds to blueocean experience -->
        <dependency>
            <groupId>org.jenkins-ci.plugins</groupId>
            <artifactId>github-branch-source</artifactId>
        </dependency>

As a result our Jenkins has a few extra plugins installed:

• GitHub
• GitHub API
• GitHub Branch Source

We do not rely on GitHub at all and it would be great to make the dependency optional if at all possible.