meshGFace : remove 2 memory leaks (other still remain)

Mesh/meshGFace.cpp

@@ -1389,8 +1389,9 @@ bool meshGenerator(GFace *gf, int RECUR_ITER,
     Msg::Debug("Delaunizing the initial mesh");
     delaunayizeBDS(gf, *m, nb_swap);
   }
-  gf->triangles.clear();
-  gf->quadrangles.clear();
+  //gf->triangles.clear();
+  //gf->quadrangles.clear();
+  gf->deleteMesh();
 
   Msg::Debug("Starting to add internal points");
   // start mesh generation

Mesh/meshGFaceDelaunayInsertion.cpp

@@ -792,7 +792,7 @@ bool insertVertexB (std::list<edgeXface> &shell,
     //    _printTris("new_cavity.pos", new_cavity.begin(), new_cavity.end(), Us, Vs, false);
     //    _printTris("newTris.pos", &newTris[0], newTris+shell.size(), Us, Vs, false);
     //    _printTris("allTris.pos", allTets.begin(),allTets.end(), Us, Vs, false);
-    for (unsigned int i = 0; i < shell.size(); i++) delete newTris[i];
+    for (unsigned int i = 0; i < shell.size(); i++) {delete newTris[i]->tri(), delete newTris[i];}
     delete [] newTris;
     //    throw;
     //    double t2 = Cpu();