Compliance pipelines removal
### Problem to solve
[Pipeline execution policies](https://docs.gitlab.com/ee/user/application_security/policies/#scan-execution-policy-schema) is adding support for [compliance framework pipelines](https://docs.gitlab.com/ee/user/project/settings/index.html#compliance-pipeline-configuration) to provide users need a single solution for enforcing jobs to be run as part of a project pipeline. Follow along with progress in this epic https://gitlab.com/groups/gitlab-org/-/epics/7312+
In https://gitlab.com/groups/gitlab-org/-/epics/12324+ and https://gitlab.com/groups/gitlab-org/-/epics/14150+ we are adding banners to support users to migrate their compliance pipelines over to pipeline execution policies, and also deterring users from adding new compliance pipelines.
### Proposal
The third phase of this to deprecate compliance pipelines altogether, this will be removing the compliance altogether pipeline field altogether and not including compliance pipelines when a project pipeline is run.
epic