Removes reviewed validation from security merge request validator
What does this MR do?
Removes validated_reviewed
from Security::MergeRequestValidator
After gitlab-com/gl-infra/delivery#710 (closed), we're explicitly ensuring every merge request as an approval, so checking for the checkbox to be ticked is no longer necessary.
This is a small refactor as part of https://gitlab.com/gitlab-org/release-tools/-/issues/457
Edited by Mayra Cabrera