remove some unused variables

Author: KrisThielemans

src/buildblock/GeometryBlocksOnCylindrical.cxx

@@ -85,9 +85,6 @@ GeometryBlocksOnCylindrical::build_crystal_maps(const Scanner& scanner)
   float trans_blocks_gap = transaxial_block_spacing - num_transaxial_crystals_per_block * transaxial_crystal_spacing;
   float ax_blocks_gap = axial_block_spacing - (num_axial_crystals_per_block - 1) * axial_crystal_spacing;
   float csi_minus_csiGaps = csi - (csi / transaxial_block_spacing * 2) * (transaxial_crystal_spacing / 2 + trans_blocks_gap);
-  //    distance between the center of the scannner and the first crystal in the bucket, r=Reffective/cos(csi)
-  float r = scanner.get_effective_ring_radius() / cos(csi_minus_csiGaps);
-
   float start_z = -(axial_block_spacing * num_axial_blocks_per_bucket * num_axial_buckets - ax_blocks_gap) / 2;
   float start_y = -1 * scanner.get_effective_ring_radius();
   float start_x = -1 // the first crystal in the bucket

src/utilities/calculate_attenuation_coefficients.cxx

@@ -185,9 +185,6 @@ main(int argc, char* argv[])
       return EXIT_FAILURE;
     }
 
-  // dummy values currently necessary for BinNormalisation, but they will be ignored
-  const double start_frame = 0;
-  const double end_frame = 0;
   shared_ptr<DataSymmetriesForViewSegmentNumbers> symmetries_sptr(forw_projector_sptr->get_symmetries_used()->clone());
   if (doACF)
     {

src/utilities/correct_projdata.cxx

@@ -297,8 +297,6 @@ CorrectProjDataApplication::run() const
 		  else
 #endif
             {
-              const double start_frame = frame_defs.get_start_time(frame_num);
-              const double end_frame = frame_defs.get_end_time(frame_num);
               if (apply_or_undo_correction)
                 {
                   normalisation_ptr->apply(viewgrams);