Fix: GPv3: Wrong reading of GP drawing ID reference

Datablock pointers are resolved in lib linking stage, not here.

Pull Request: https://projects.blender.org/blender/blender/pulls/120946

source/blender/blenkernel/intern/grease_pencil.cc

@@ -2934,9 +2934,6 @@ static void read_drawing_array(GreasePencil &grease_pencil, BlendDataReader *rea
         break;
       }
       case GP_DRAWING_REFERENCE: {
-        GreasePencilDrawingReference *drawing_reference =
-            reinterpret_cast<GreasePencilDrawingReference *>(drawing_base);
-        BLO_read_data_address(reader, &drawing_reference->id_reference);
         break;
       }
     }