clean up comments

src/libslic3r/TextureToColor/TextureToColor.cpp

@@ -639,9 +639,8 @@ static bool repair_cluster_smooth(
     {
         TriangleMesh stats_mesh(static_cast<const indexed_triangle_set&>(mesh));
         const auto& stats = stats_mesh.stats();
-        // Orca's TriangleMeshStats defines manifold() as open_edges == 0 and does not track
-        // non-manifold edges/vertices separately, so BBS's "!manifold() || has_open_edges()"
-        // collapses to this single test and the extra counters drop out of the log.
+        // Orca's TriangleMeshStats only counts open edges: manifold() is open_edges == 0, and
+        // there are no separate non-manifold edge/vertex counters to test or log here.
         if (!stats.manifold()) {
             BOOST_LOG_TRIVIAL(info) << log_prefix << ": mesh has non-manifold geometry or open boundaries, open_edges="
                                     << stats.open_edges;