Remove License Scanning CI templates

Why are we doing this work

License Scanning CI templates are deprecated as of GitLab 16.9.

This issue is to remove the deprecated files:

• https://gitlab.com/gitlab-org/gitlab/-/blob/master/lib/gitlab/ci/templates/Jobs/License-Scanning.gitlab-ci.yml
• https://gitlab.com/gitlab-org/gitlab/-/blob/master/lib/gitlab/ci/templates/Jobs/License-Scanning.latest.gitlab-ci.yml
• https://gitlab.com/gitlab-org/gitlab/-/blob/master/lib/gitlab/ci/templates/Security/License-Scanning.gitlab-ci.yml

Relevant links

• Deprecation issue: Deprecate License Scanning CI templates (#439157 - closed)

Non-functional requirements

• Documentation:
• Feature flag:
• Performance:
• Testing:

Implementation plan

• Remove:
  • lib/gitlab/ci/templates/Jobs/License-Scanning.gitlab-ci.yml
  • lib/gitlab/ci/templates/Jobs/License-Scanning.latest.gitlab-ci.yml
  • lib/gitlab/ci/templates/Security/License-Scanning.gitlab-ci.yml
  • ee/spec/lib/gitlab/ci/templates/license_scanning_gitlab_ci_yaml_spec.rb
  • ee/spec/lib/gitlab/ci/templates/license_scanning_latest_gitlab_ci_yaml_spec.rb
• Update ee/spec/lib/ee/gitlab/template/gitlab_ci_yml_template_spec.rb
• Remove reference from
  • lib/gitlab/ci/templates/Auto-DevOps.gitlab-ci.yml
  • doc/development/sec/analyzer_development_guide.md
  • doc/user/application_security/index.md
  • doc/user/compliance/license_scanning_of_cyclonedx_files/index.md

Verification steps