[BUG] Map drop

Did an audit of the code looking for any misuses of map variable types. Found one that could be problematic, but protections earlier in the code make this not feasible to be a problem. But should fix it anyways, just in case.

Also refactored the genesis to remove usage of a map. It may cause different nodes to generate different genesis files (ie different checksums) but still the same data. But the net result would be safe.