Set the property to false as suggested by TJ

Former-commit-id: b57ffa978d4978969b9ba87efde282584e67d321

PhysicsAnalysis/DerivationFramework/DerivationFrameworkJetEtMiss/python/ExtendedJetCommon.py

@@ -201,6 +201,7 @@ def getJetCleaningTool(cleaningLevel):
         jetcleaningtool = getattr(ToolSvc,jetcleaningtoolname)
     else:
         jetcleaningtool = CfgMgr.JetCleaningTool(jetcleaningtoolname,CutLevel=cleaningLevel)
+        jetcleaningtoo.UseDecorations = False
         ToolSvc += jetcleaningtool
 
     return jetcleaningtool