DiffractionSpot: Remove unused functions

common/DiffractionSpot.cpp

@@ -47,10 +47,6 @@ int64_t DiffractionSpot::PixelCount() const {
     return pixel_count;
 }
 
-double DiffractionSpot::GetResolution(const DiffractionGeometry &geom) const {
-    return geom.PxlToRes(x  / (float)photons, y / (float)photons);
-}
-
 void DiffractionSpot::AddPixel(uint32_t col, uint32_t line, int64_t photons) {
     this->x += col * (float) photons;
     this->y += line * (float) photons;

common/DiffractionSpot.h

@@ -16,9 +16,6 @@ class DiffractionSpot {
     int64_t pixel_count = 0;
     int64_t photons = 0;     // total photon count
     int64_t max_photons = INT64_MIN; // maximum number of counts per pixel in the spot
-
-    double GetResolution(const DiffractionGeometry &experiment) const;
-    static bool IsIceRing(float d_A);
 public:
     DiffractionSpot() = default;
     DiffractionSpot(uint32_t col, uint32_t line, int64_t photons);