Map Update & Code Style

Fixing a small code style in WorldCluster.vb

Map Update: Removing MapID 530 from the source, cause that's a TBC map, and shouldn't be in this version of wow.

*Note: Might be the source of the memory leaks I been seeing during run time. Not sure of this just yet.

After some testing, it looks like the memory was from the update of the MapID 530 removal.