The hopefully last leak fix for MuPatHitTool
call cleanUp through MuonCombinedAlg -> MuonCombinedTool -> MuonCombinedFitTagTool -> CombinedMuonTrackBuilder -> MuonSegmentRegionRecoveryTool -> MooCandidateMatchingTool -> MuPatCandidateTool -> MuPatHitTool