message: Removed unused methods from BilinearForm
diff: @@ -325,12 +325,6 @@ public:
  /// Get the finite element space restriction matrix
  virtual const Operator *GetRestriction() const
  { return fes->GetConformingRestriction(); }
  - /// Get the output finite element space prolongation matrix
  - virtual const Operator *GetOutputProlongation() const
  - { return GetProlongation(); }
  - /// Get the output finite element space restriction matrix
  - virtual const Operator *GetOutputRestriction() const
  - { return GetRestriction(); }
  /** @brief Form the linear system A X = B, corresponding to this bilinear
  form and the linear form @a b(.). */
  