Remove ignore columns on JiraTrackerData

What does this MR do?

Removing columns requires 3 milestones https://docs.gitlab.com/ee/development/what_requires_downtime.html#dropping-columns

• Ignore the column %13.11 !57260 (merged)
• Drop the column %13.12 !60123 (merged)
• Remove the ignore rule %14.0 => We are here

Related to #325938 (closed)