[Deangular] Tile map and region map

[ashwin-pc]

Work left

• Remove angular-sanitize from tile_map plugin
• Clean out opensearch_dashboards_legacy usages in tile map and region map

[ananzh]

I created an issue in our map team opensearch-project/dashboards-maps#459 since I see a TODO in tile map code.

// TODO: Determine why visualizations don't populate without this
import 'angular-sanitize';

We should notify map team and let them investigate how this would break them.