Merge branch 'use-fast-redundant-cancellation-globally' into 'master'

Remove cancel_redundant_pipelines_without_hierarchy_cte feature flag and use new code path

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/164436



Merged-by: Furkan Ayhan <furkanayhn@gmail.com>
Approved-by: Furkan Ayhan <furkanayhn@gmail.com>
Co-authored-by: drew <dscimino@gmail.com>