rm unused ReParticle::formfactor

Resample/Particle/ReParticle.cpp

@@ -74,11 +74,6 @@ const IFormFactor* ReParticle::iformfactor() const
     return m_ff.get();
 }
 
-complex_t ReParticle::formfactor(C3 q) const
-{
-    return m_ff->formfactor(q);
-}
-
 complex_t ReParticle::theFF(const WavevectorInfo& wavevectors) const
 {
     WavevectorInfo wavevectors2 =

Resample/Particle/ReParticle.h

@@ -52,8 +52,6 @@ public:
 
     const IFormFactor* iformfactor() const;
 
-    virtual complex_t formfactor(C3 q) const;
-
 private:
     const std::unique_ptr<const IFormFactor> m_ff;
     std::unique_ptr<const Material> m_material;