Code style
Remove LAST_ROOM
Remove LAST_PORTALS_COUNT
Remove ARX_PORTALS_Frustrum_RenderRoomsTCullSoft
Remove INTER_DRAW
Remove unused ARX_PORTALS_ComputeRoom
Replace goto with if, cleanups
Remove unused parameter
Removed check, i is never 0
Move renderer state change out of RenderInter
Move matrix generation to smaller scope
Cleanup Cedric_GetScale
Cleanup RenderInter
Cleanup distance check
Move matrix creation