Fix locked milestone in boards being remove-able - 9.2 merge edition
What does this MR do?
- Remove "x" button from locked milestone
this.canteditis in place)
Are there points in the code the reviewer needs to double check?
Why was this MR needed?
- When visiting a board that is associated with a milestone, the locked visual milestone has a usable "x" remove button.
Screenshots (if relevant)
Does this MR meet the acceptance criteria?
- Added for this feature/bug
- All builds are passing
- Conform by the merge request performance guides
- Conform by the style guides
Branch has no merge conflicts with
master(if it does - rebase it please)
- Squashed related commits together
What are the relevant issue numbers?
Closes #2433 (closed)