diff --git a/InnerDetector/InDetRecTools/SiSpacePointTool/SiSpacePointTool/SiSpacePointMakerTool.h b/InnerDetector/InDetRecTools/SiSpacePointTool/SiSpacePointTool/SiSpacePointMakerTool.h
index 7dc072a7da2374c69ebe18778f65dfa8ccbec320..b891997216141b6660141243708fd13b48148dfb 100644
--- a/InnerDetector/InDetRecTools/SiSpacePointTool/SiSpacePointTool/SiSpacePointMakerTool.h
+++ b/InnerDetector/InDetRecTools/SiSpacePointTool/SiSpacePointTool/SiSpacePointMakerTool.h
@@ -7,14 +7,12 @@
 
 #include "AthenaBaseComps/AthAlgTool.h"
 
-#include "AthenaKernel/SlotSpecificObj.h"
 #include "GeoPrimitives/GeoPrimitives.h"
 #include "InDetPrepRawData/PixelClusterCollection.h"
 #include "InDetPrepRawData/SCT_ClusterCollection.h"
 #include "SiSpacePointTool/SCTinformation.h"
 #include "TrkSpacePoint/SpacePoint.h"
 
-#include <mutex>
 #include <string>
 
 class SCT_ID;
@@ -58,9 +56,6 @@ namespace InDet {
     /// Finalize
     virtual StatusCode finalize() override;
 
-    /// To trigger cleanup for new event
-    void newEvent() const;
-
     /// Convert clusters to space points: SCT_Clusters -> SCT_SpacePoints
     Trk::SpacePoint* makeSCT_SpacePoint(const InDet::SiCluster& cluster1, const InDet::SiCluster& cluster2, 
                                         const Amg::Vector3D& vertexVec,
@@ -115,41 +110,6 @@ namespace InDet {
     const SCT_ID* m_idHelper{nullptr};
     //@}
 
-    /// @name Mutex to protect data members in const methods
-    //@{
-    mutable std::mutex m_mutex;
-    //@}
-
-    /// @class CacheEntry
-    /// To hold event dependent data
-    struct CacheEntry {
-      EventContext::ContextEvt_t m_evt{EventContext::INVALID_CONTEXT_EVT}; //!< Event number, slot number, used to check if already processed event or not.
-      std::vector<Trk::SpacePoint*> m_tmpSpacePoints{}; //!< SpacePoint cache
-      std::vector<SCTinformation> m_SCT0{}; //!< SCTinformation vector for 0-th element (side 0)
-      std::vector<SCTinformation> m_SCT1{}; //!< SCTinformation vector for 1-st element (side 1)
-      const InDetDD::SiDetectorElement* m_element0{nullptr}; //!< SiDetectorElement for 0-th element (side 0)
-      const InDetDD::SiDetectorElement* m_element1{nullptr}; //!< SiDetectorElement for 1-st element (side 1)
-      const InDetDD::SiDetectorElement* m_elementOLD{nullptr}; //!< SiDetectorElement cache
-      /// Clear all members of event dependent data
-      void clear() {
-        if (m_tmpSpacePoints.size()) {
-          for (Trk::SpacePoint* sp : m_tmpSpacePoints) {
-            delete sp;
-          }
-        }
-        m_tmpSpacePoints.clear();
-        m_SCT0.clear();
-        m_SCT1.clear();
-        m_element0 = nullptr;
-        m_element1 = nullptr;
-        m_elementOLD = nullptr;
-      };
-    };
-
-    /// SG::SlotSpecificObj is used to hold event dependent data cache.
-    /// Guarded by m_mutex in const methods.
-    mutable SG::SlotSpecificObj<CacheEntry> m_cache ATLAS_THREAD_SAFE;
-
     /// update range accordingly to the gap between the stereo modules
     void updateRange(const InDetDD::SiDetectorElement* element1, 
                      const InDetDD::SiDetectorElement* element2, 
diff --git a/InnerDetector/InDetRecTools/SiSpacePointTool/src/SiSpacePointMakerTool.cxx b/InnerDetector/InDetRecTools/SiSpacePointTool/src/SiSpacePointMakerTool.cxx
index 5caa00056c528bf7943cd03f6bbcb289372daa78..36439c690ba128d542491d020b4c3ee34432db4a 100644
--- a/InnerDetector/InDetRecTools/SiSpacePointTool/src/SiSpacePointMakerTool.cxx
+++ b/InnerDetector/InDetRecTools/SiSpacePointTool/src/SiSpacePointMakerTool.cxx
@@ -48,18 +48,6 @@ namespace InDet {
     return StatusCode::SUCCESS;
   }
   //--------------------------------------------------------------------------
-  void SiSpacePointMakerTool::newEvent() const {
-    const EventContext& ctx{Gaudi::Hive::currentContext()};
-    std::lock_guard<std::mutex> lock{m_mutex};
-    CacheEntry* ent{m_cache.get(ctx)};
-    if (ent->m_evt!=ctx.evt()) { // New event in this slot
-      ent->clear();
-      ent->m_evt = ctx.evt();
-    } else {
-      ent->m_elementOLD = nullptr;
-    }
-  }    
-  //--------------------------------------------------------------------------
   Trk::SpacePoint* SiSpacePointMakerTool::makeSCT_SpacePoint(const InDet::SiCluster& cluster1, 
                                                              const InDet::SiCluster& cluster2,
                                                              const Amg::Vector3D& vertexVec,