Unlinker: Make zone files creators game dependent and in the unlinker project instead of the ObjWriting component

src/ObjWriting/Dumping/IZoneDumper.h

@@ -1,7 +1,6 @@
 #pragma once
 
 #include "Zone/Zone.h"
-#include "Utils/FileAPI.h"
 
 class IZoneDumper
 {
@@ -10,5 +9,4 @@ public:
 
     virtual bool CanHandleZone(Zone* zone) const = 0;
     virtual bool DumpZone(Zone* zone, const std::string& basePath) const = 0;
-    virtual bool WriteZoneDefinition(Zone* zone, FileAPI::File* file) const = 0;
 };