Follow-up: Remove ignored columns from Plan model
In %12.5 we migrated Plan limits outside Plan
model and into PlanLimit
model.
During the migration we had to ignore the legacy columns related to limits in Plan
to avoid ActiveRecord caching them.
In %12.6 we can remove this line: https://gitlab.com/gitlab-org/gitlab/blob/ee0b11f54f95536475d63688a3ed5831cb6b7e8c/ee/app/models/plan.rb#L4