Remove jobs that are now done in separate projects
The jobs are now done as part of https://gitlab.com/gitlab-org/quality/nightly and https://gitlab.com/gitlab-org/quality/staging scheduled pipelines.
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
The jobs are now done as part of https://gitlab.com/gitlab-org/quality/nightly and https://gitlab.com/gitlab-org/quality/staging scheduled pipelines.