message: Use `= delete` on constructor to prevent instantiation
diff: @@ -32,8 +32,7 @@ public:
  static bool canBuild(const StorableResources& source, StructureID type);
  private:
  - StructureCatalogue() {} // Explicitly declared private to prevent instantiation.
  - ~StructureCatalogue() {} // Explicitly declared private to prevent instantiation.
  + StructureCatalogue() = delete;
  private:
  static float mMeanSolarDistance;
  