remove empty lines

Heat_method_3/include/CGAL/Heat_method_3/Surface_mesh_geodesic_distances_3.h

@@ -50,18 +50,17 @@ struct Heat_method_3_private_tests;
 namespace CGAL {
 namespace Heat_method_3 {
 
-  /**
+/**
  * A tag class used to specify that the heat method is applied to the input mesh.
  */
-  struct Direct
-  {};
+struct Direct
+{};
 
-  /**
+/**
  * A tag class used to specify that the heat method applies the intrinsic Delaunay triangulation to the input mesh.
  */
-  struct Intrinsic_Delaunay
-  {};
-
+struct Intrinsic_Delaunay
+{};
 
 namespace internal {
 template <typename TriangleMesh,
@@ -224,7 +223,6 @@ public:
     return m_sources;
   }
 
-
 private:
 
   double
@@ -368,8 +366,6 @@ private:
   }
 
 
-
-
   void
   compute_divergence()
   {
@@ -510,8 +506,6 @@ public:
 
 private:
 
-
-  
   void
   build()
   {