Resolve vulnererability scanners model cross join issues

Gregory Havenga (is on PTO from 15 December 2025 to 02 January 2026)requested to merge
478017-resolve-vulnererability-scanners-model-cross-join-issues into master

What does this MR do and why?

This MR remove a non-functional method call from the vulnerability scanner model that was necessary in the early parts of the sec-decomposition but is no longer. GitLab's behaviour is wholly unaffected.

MR acceptance checklist

Please evaluate this MR against the MR acceptance checklist. It helps you analyze changes to reduce risks in quality, performance, reliability, security, and maintainability.

Related to #478017 (closed)

Merge request reports