Fix: Put unused var into comments to later use.

code/AssetLib/DXF/DXFLoader.cpp

@@ -581,7 +581,8 @@ void DXFImporter::ParseInsertion(DXF::LineReader& reader, DXF::FileData& output)
 }
 
 static constexpr unsigned int DXF_POLYLINE_FLAG_CLOSED = 0x1;
-static constexpr unsigned int DXF_POLYLINE_FLAG_3D_POLYLINE = 0x8;
+// Currently unused
+//static constexpr unsigned int DXF_POLYLINE_FLAG_3D_POLYLINE = 0x8;
 static constexpr unsigned int DXF_POLYLINE_FLAG_3D_POLYMESH = 0x10;
 static constexpr unsigned int DXF_POLYLINE_FLAG_POLYFACEMESH = 0x40;