Fix includes

Author: romainschotter

Common/Tasks/centralityQa.cxx

@@ -14,7 +14,6 @@
 #include "Common/DataModel/EventSelection.h"
 #include "Common/DataModel/Multiplicity.h"
 
-#include <Framework/HistogramRegistry.h>
 #include <Framework/AnalysisDataModel.h>
 #include <Framework/AnalysisHelpers.h>
 #include <Framework/AnalysisTask.h>
@@ -24,6 +23,9 @@
 #include <TH1.h>
 #include <TProfile.h>
 
+#include <cstdlib>
+
+
 using namespace o2;
 using namespace o2::framework;