diff --git a/src/buildblock/ProjDataInMemory.cxx b/src/buildblock/ProjDataInMemory.cxx
index 0194e3c6f..5c8c50203 100644
--- a/src/buildblock/ProjDataInMemory.cxx
+++ b/src/buildblock/ProjDataInMemory.cxx
@@ -353,13 +353,7 @@ ProjDataInMemory::ProjDataInMemory(const ProjDataInMemory& proj_data)
 shared_ptr<ProjDataInMemory>
 ProjDataInMemory::read_from_file(const std::string& filename, const std::ios::openmode openmode)
 {
-#if 1
-  const auto proj_data = ProjData::read_from_file(filename, openmode);
-  return std::make_shared<ProjDataInMemory>(*proj_data);
-#else
-  // Alternative implementation
   return std::make_shared<ProjDataInMemory>(*ProjData::read_from_file(filename, openmode));
-#endif
 }
 
 float