Merge branch 'feature/cleanup-DevfileParserV2' into 'master'

Cleanup `DevfileParserV2` related files from code

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/177684



Merged-by: Halil Coban <hcoban@gitlab.com>
Approved-by: Lee Tickett <ltickett@gitlab.com>
Approved-by: Halil Coban <hcoban@gitlab.com>
Co-authored-by: Marek Sokol <devmareksokol@gmail.com>