remove examples that are in dont_submit

BGL/doc/BGL/examples.txt

@@ -13,5 +13,4 @@
 \example BGL_triangulation_2/dijkstra_with_internal_properties.cpp
 \example BGL_triangulation_2/emst.cpp
 \example BGL_surface_mesh/prim.cpp
-\example BGL_surface_mesh/surface_mesh_dual.cpp
 */

Mesh_3/doc/Mesh_3/examples.txt

@@ -11,8 +11,5 @@
 \example Mesh_3/mesh_optimization_lloyd_example.cpp
 \example Mesh_3/mesh_polyhedral_domain.cpp
 \example Mesh_3/mesh_polyhedral_domain_with_features.cpp
-\example Mesh_3/mesh_polyhedral_edge_tolerance_region.cpp
-\example Mesh_3/mesh_polyhedral_implicit_function.cpp
-\example Mesh_3/mesh_polyhedral_surface_tolerance_region.cpp
 \example Mesh_3/mesh_two_implicit_spheres_with_balls.cpp
 */

Skin_surface_3/doc/Skin_surface_3/examples.txt

@@ -1,6 +1,4 @@
 /*!
-\example Skin_surface_3/NGHK_skin_surface_simple.cpp
-\example Skin_surface_3/NGHK_skin_surface_subdiv.cpp
 \example Skin_surface_3/skin_surface_pdb_reader.cpp
 \example Skin_surface_3/skin_surface_retrieve_defining_weighted_points.cpp
 \example Skin_surface_3/skin_surface_simple.cpp

Surface_mesher/doc/Surface_mesher/examples.txt

@@ -1,5 +1,4 @@
 /*!
 \example Surface_mesher/mesh_an_implicit_function.cpp
 \example Surface_mesher/mesh_a_3d_gray_image.cpp
-\example Surface_mesher/polyhedron_remesher.cpp
 */