Removing apache license from *.yml files

All Submissions:

[YES] Have you followed the guidelines in our Contributing document?
[YES] Have you added an explanation of what your changes do and why you'd like us to include them?
[YES] I have updated the documentation accordingly.
[NA] I have added tests to cover my changes.
[YES] All new and existing tests passed.
[YES] My code follows the code style of this project.
[YES] I ran lint checks locally prior to submission.
[YES] Have you checked to ensure there aren't other open Pull Requests for the same update/change?

There are apache license headers on some of the pipelines, but the project does not use this license!

Issue Number: N/A