Remove Jenkins jobs for older releases and deprecated repos

[jmundack]

Looking at the current list of Jenkins jobs we have at https://jenkins.ceph.com/view/all/

And sorting them by last success/failure - there are jobs that havent been run in years - These jobs should be removed to reduce the overhead on jenkins AND our jenkins administrators

eg: Jobs that are specific to EOL'd releases or for repos that have been migrated/deprecated

As of 03/13/2025 - jobs that havent been run in the past 365 days

ref: Jenkins jobs that havent been run in last 365 days!