free the buffer setup and belt registration from BuildingSystem

src/lib/sim/BuildingSystem.h

@@ -16,6 +16,7 @@
 #include "BeltSystem.h"
 #include "Building.h"
 #include "FactoryState.h"
+#include "BuildingBuffers.h"
 #include "PlacementRules.h"
 #include "ProductionRules.h"
 #include "BuildingType.h"
@@ -188,9 +189,6 @@ private:
     // Registers a belt/splitter/tunnel building's tile with the belt subsystem
     // (on construction completion, or when un-queuing a deconstruction). No-op for
     // non-belt-subsystem types. Splitter filters are (re)applied after placement.
-    void                 reregisterBeltTile(const Building& building,
-                                            const std::vector<ItemType>& splitterFilterA,
-                                            const std::vector<ItemType>& splitterFilterB);
 
     // True if the consumer would accept `type` at the given input port right now:
     // it is a required input (or a building block for the HQ), the reservation-aware
@@ -221,13 +219,9 @@ private:
     // (ignoring output-buffer space); drives the Starved/Blocked distinction of
     // the status light (REQ-UI-STATUS-LIGHT).
 
-    void                initBuffers(Building& b, const RecipeDef& recipe) const;
     // Buffers for an auto-recipe building (Smelter, Reprocessing Plant): input
     // caps span the union of every recipe of the building's type; no player
     // recipe is selected (REQ-BLD-SMELTER, REQ-BLD-REPROCESSING).
-    void                initAutoBuffers(Building& b) const;
-    void                initShipyardBuffers(Building& b) const;
-    void                initSalvageBayBuffer(Building& b) const;
     // Core input-edge scan shared by operational buildings and construction sites.
     std::vector<Item>   rollReprocessingOutput(const RecipeDef& recipe);