Update src/include/stir/scatter/ScatterSimulation.h

Co-authored-by: Kris Thielemans <KrisThielemans@users.noreply.github.com>

Author: NikEfth

src/include/stir/scatter/ScatterSimulation.h

@@ -124,7 +124,7 @@ class ScatterSimulation : public RegisteredObject<ScatterSimulation>
 
   void set_template_proj_data_info(const std::string&);
 
-  void set_template_proj_data_info(std::shared_ptr<const ProjDataInfo> arg);
+  void set_template_proj_data_info(shared_ptr<const ProjDataInfo> arg);
 
   void set_activity_image_sptr(const shared_ptr<const DiscretisedDensity<3, float>>);