diff --git a/Kernel_23/include/CGAL/Dimension.h b/Kernel_23/include/CGAL/Dimension.h
index 6a6c7cf8759..b0e8a9f2d3a 100644
--- a/Kernel_23/include/CGAL/Dimension.h
+++ b/Kernel_23/include/CGAL/Dimension.h
@@ -40,14 +40,6 @@ const int UNKNOWN_DIMENSION=(unsigned)-1/2;
 
 // Check that dimension d1 is fine for a kernel of dimension d2.
 // If d2 is unknown, any d1 is fine.
-inline bool check_dimension_lt(int d1, int d2){
-	//return (d2==UNKNOWN_DIMENSION)||(d1<d2);
-	return d1<d2;
-}
-inline bool check_dimension_le(int d1, int d2){
-	//return (d2==UNKNOWN_DIMENSION)||(d1<=d2);
-	return d1<=d2;
-}
 inline bool check_dimension_eq(int d1, int d2){
 	return d2==UNKNOWN_DIMENSION || d1==d2;
 }
diff --git a/NewKernel_d/include/CGAL/NewKernel_d/LA_eigen/constructors.h b/NewKernel_d/include/CGAL/NewKernel_d/LA_eigen/constructors.h
index f0eacbca91c..468d1327b56 100644
--- a/NewKernel_d/include/CGAL/NewKernel_d/LA_eigen/constructors.h
+++ b/NewKernel_d/include/CGAL/NewKernel_d/LA_eigen/constructors.h
@@ -23,7 +23,6 @@ namespace CGAL {
     static void check_dim(int CGAL_assertion_code(d)){
       CGAL_assertion_code(int m = result_type::MaxSizeAtCompileTime;)
       CGAL_assertion((m == Eigen::Dynamic) || (d <= m));
-      // could omit the first check since they use a big value for Dynamic.
     }
     public: