message: Remove explicit default constructor/destructor
diff: @@ -22,9 +22,6 @@ struct StorableResources;
  class StructureManager
  {
  public:
  - StructureManager() = default;
  - ~StructureManager() = default;
  -
  void addStructure(Structure* structure, Tile* tile);
  void removeStructure(Structure* structure);
  