..removed singleton from cmake

Src/CMakeLists.txt

@@ -42,6 +42,5 @@ set(${TN}_PUBLIC_HEADERS
     "${CMAKE_CURRENT_LIST_DIR}/TrackedComponents/TrackedElement.h"
     "${CMAKE_CURRENT_LIST_DIR}/TrackedComponents/TrackedTrajectory.h"
     "${CMAKE_CURRENT_LIST_DIR}/util/misc.h"
-    "${CMAKE_CURRENT_LIST_DIR}/util/singleton.h"
     "${CMAKE_CURRENT_LIST_DIR}/IConfig.h"
 )
\ No newline at end of file