Correctly set WITH_OPENMP to ITS tracking lib

(cherry picked from commit 62859c8)

Author: mconcas

Detectors/ITSMFT/ITS/tracking/CMakeLists.txt

@@ -38,6 +38,11 @@ o2_add_library(ITStracking
                        O2::DataFormatsITS)
 
 
+if (OpenMP_CXX_FOUND)
+        target_compile_definitions(${targetName} PRIVATE WITH_OPENMP)
+        target_link_libraries(${targetName} PRIVATE OpenMP::OpenMP_CXX)
+endif()
+
 o2_add_library(ITSTrackingInterface
                TARGETVARNAME targetName
                SOURCES src/TrackingInterface.cxx

Detectors/ITSMFT/ITS/tracking/src/TrackerTraits.cxx

@@ -1031,10 +1031,5 @@ void TrackerTraits::adoptTimeFrame(TimeFrame* tf)
   mTimeFrame = tf;
 }
 
-// bool TrackerTraits::checkTFMemory(const int iteration)
-// {
-//   return mTimeFrame->checkMemory(mTrkParams[iteration].MaxMemory);
-// }
-
 } // namespace its
 } // namespace o2