refactor main

src/Metrics.cc

@@ -127,6 +127,5 @@ namespace bayesnet {
         auto result = vector<pair<int, int>>();
         auto mst = MST(features, weights, root);
         return mst.maximumSpanningTree();
-
     }
 }

src/Mst.cc

@@ -108,7 +108,6 @@ namespace bayesnet {
             }
         }
         g.kruskal_algorithm();
-        //g.display_mst();
         auto mst = g.get_mst();
         return reorder(mst, root);
     }