How do I remove my old artifacts/builds?
Answer
While in your project, in the left-hand nav, go to Outputs and click on the green "complete" for an old build you no longer want. Once you are there, locate the build you no longer want and select the icon for it (i.e. windowsBuild) and locate the trash can on the top right.
Whether you have one or multiple build outputs in one pipeline, you can delete the entire pipeline by clicking Flows > Pipelines and clicking delete.