Remove historical label on parks

As per discussions recent discussions, we have decided to remove the Historical label on parks in A&R as that does not really indicate the park is historical. The historical label will remain on sub-area as that isLegacy flag means it came from historical data, where as the park label does not have the same meaning because the park can still be active.

Acceptance Criteria

• remove isLegacy flag from Parks/ORCs
• remove historical label on UI for Parks
• keep label and flag for sub-areas where it applied

Notes