Remove atomic link libraries

Author: christophfroehlich

CMakeLists.txt

@@ -83,7 +83,7 @@ if(BUILD_TESTING)
   target_link_libraries(realtime_buffer_tests realtime_tools)
 
   ament_add_gmock(lock_free_queue_tests test/lock_free_queue_tests.cpp)
-  target_link_libraries(lock_free_queue_tests realtime_tools atomic Boost::boost)
+  target_link_libraries(lock_free_queue_tests realtime_tools Boost::boost)
 
   ament_add_gmock(realtime_clock_tests test/realtime_clock_tests.cpp)
   target_link_libraries(realtime_clock_tests realtime_tools)