diff --git a/lib/src/SVMKernelRegressionEvaluation.cxx b/lib/src/SVMKernelRegressionEvaluation.cxx
index 4b972b6..6f0ba22 100644
--- a/lib/src/SVMKernelRegressionEvaluation.cxx
+++ b/lib/src/SVMKernelRegressionEvaluation.cxx
@@ -78,12 +78,6 @@ String SVMKernelRegressionEvaluation::__repr__() const
   return oss;
 }
 
-/* Test for actual implementation */
-Bool SVMKernelRegressionEvaluation::isActualImplementation() const
-{
-  return true;
-}
-
 /* Operator () */
 Point SVMKernelRegressionEvaluation::operator() (const Point & inP) const
 {
diff --git a/lib/src/SVMKernelRegressionGradient.cxx b/lib/src/SVMKernelRegressionGradient.cxx
index 5c249d6..4a5ada3 100644
--- a/lib/src/SVMKernelRegressionGradient.cxx
+++ b/lib/src/SVMKernelRegressionGradient.cxx
@@ -79,12 +79,6 @@ String SVMKernelRegressionGradient::__repr__() const
   return oss;
 }
 
-/* Test for actual implementation */
-Bool SVMKernelRegressionGradient::isActualImplementation() const
-{
-  return true;
-}
-
 /* Gradient method */
 Matrix SVMKernelRegressionGradient::gradient(const Point & inP) const
 {
diff --git a/lib/src/SVMKernelRegressionHessian.cxx b/lib/src/SVMKernelRegressionHessian.cxx
index f6a91a2..3caf14c 100644
--- a/lib/src/SVMKernelRegressionHessian.cxx
+++ b/lib/src/SVMKernelRegressionHessian.cxx
@@ -78,12 +78,6 @@ String SVMKernelRegressionHessian::__repr__() const
   return oss;
 }
 
-/* Test for actual implementation */
-Bool SVMKernelRegressionHessian::isActualImplementation() const
-{
-  return true;
-}
-
 /* Hessian method */
 SymmetricTensor SVMKernelRegressionHessian::hessian(const Point & inP) const
 {
diff --git a/lib/src/otsvm/SVMKernelRegressionEvaluation.hxx b/lib/src/otsvm/SVMKernelRegressionEvaluation.hxx
index b6dcab0..fc98eaa 100644
--- a/lib/src/otsvm/SVMKernelRegressionEvaluation.hxx
+++ b/lib/src/otsvm/SVMKernelRegressionEvaluation.hxx
@@ -63,9 +63,6 @@ public:
   /** String converter */
   OT::String __repr__() const override;
 
-  /** Test for actual implementation */
-  OT::Bool isActualImplementation() const override;
-
   /** Operator () */
   OT::Point operator() (const OT::Point & inP) const override;
 
diff --git a/lib/src/otsvm/SVMKernelRegressionGradient.hxx b/lib/src/otsvm/SVMKernelRegressionGradient.hxx
index d76f422..9a3dbb2 100644
--- a/lib/src/otsvm/SVMKernelRegressionGradient.hxx
+++ b/lib/src/otsvm/SVMKernelRegressionGradient.hxx
@@ -65,9 +65,6 @@ public:
   /** String converter */
   OT::String __repr__() const override;
 
-  /** Test for actual implementation */
-  OT::Bool isActualImplementation() const override;
-
   /** Gradient method */
   OT::Matrix gradient(const OT::Point & inP) const override;
 
diff --git a/lib/src/otsvm/SVMKernelRegressionHessian.hxx b/lib/src/otsvm/SVMKernelRegressionHessian.hxx
index 598245c..a2c5b4b 100644
--- a/lib/src/otsvm/SVMKernelRegressionHessian.hxx
+++ b/lib/src/otsvm/SVMKernelRegressionHessian.hxx
@@ -64,9 +64,6 @@ public:
   /** String converter */
   OT::String __repr__() const override;
 
-  /** Test for actual implementation */
-  OT::Bool isActualImplementation() const override;
-
   /** Hessian method */
   OT::SymmetricTensor hessian(const OT::Point & inP) const override;