[TD]remove problematic boost check for planarity

- boost check for planar graph was consuming memory until
  crashing.
- since all our edges have been projected onto a plane, we
  don't require this check

src/Mod/TechDraw/App/EdgeWalker.cpp

@@ -163,41 +163,6 @@ bool EdgeWalker::prepare()
         }
     }
 
-    // Test for planarity
-    using vec_t = std::vector< graph_traits<TechDraw::graph>::edge_descriptor >;
-    std::vector<vec_t> embedding(num_vertices(m_g));
-    using kura_edges_t = std::vector< graph_traits<TechDraw::graph>::edge_descriptor >;
-    kura_edges_t kEdges;
-    kura_edges_t::iterator ki, ki_end;
-    graph_traits<TechDraw::graph>::edge_descriptor e1;
-
-#if 0 // Function declared in block and lacking of implementation
-    // Get the index associated with edge
-    graph_traits<TechDraw::graph>::edges_size_type
-        get(boost::edge_index_t,
-            const TechDraw::graph& m_g,
-            graph_traits<TechDraw::graph>::edge_descriptor edge);
-#endif
-
-    bool isPlanar = boyer_myrvold_planarity_test(boyer_myrvold_params::graph = m_g,
-                                 boyer_myrvold_params::embedding = &embedding[0],            // this is "an" embedding but not one for finding
-                                 boyer_myrvold_params::kuratowski_subgraph =                 // closed regions in an edge pile.
-                                       std::back_inserter(kEdges));
-    if (!isPlanar) {
-        //TODO: remove kura subgraph to make planar??
-        Base::Console().Message("EW::prepare - input is NOT planar\n");
-        ki_end = kEdges.end();
-        std::stringstream ss;
-        ss << "EW::prepare - obstructing edges: ";
-        for(ki = kEdges.begin(); ki != ki_end; ++ki) {
-            e1 = *ki;
-            ss << boost::get(edge_index, m_g, e1) << ", ";
-        }
-        ss << std::endl;
-        Base::Console().Message("%s\n", ss.str().c_str());
-        return false;
-    }
-
     m_eV.setGraph(m_g);
     planar_face_traversal(m_g, &planar_embedding[0], m_eV);