Cleaning up unused code for ITK pixel clustering

Part of the pixel clustering tool was modified for ITk reconstuction. It turned out not to be used anymore, therefore I'm cleaning it. I have also cleaned the indentation. RunTier0Tests.py runs successfully.

InnerDetector/InDetRecTools/SiClusterizationTool/SiClusterizationTool/MergedPixelsTool.h

@@ -126,31 +126,6 @@ namespace InDet {
                        const InDetDD::SiDetectorElement* element,
                        const PixelID& pixelID) const;
 
-    // Functions for merging broken cluster segments (to be used for upgrade studies)
-    // ITk: This function checks if two barrel clusters are potentially a single cluster which is broken into two pieces  
-    bool mergeTwoBrokenClusters(const std::vector<Identifier>& group1, 
-                                const std::vector<Identifier>& group2,
-                                const InDetDD::SiDetectorElement* element,
-                                const PixelID& pixelID) const;
-    // ITk: this function checks if two to-be-merged barrel proto-clusters have sizeZ consistent with cluster positions 
-    bool mergeTwoClusters(const std::vector<Identifier>& group1, 
-                          const std::vector<Identifier>& group2,
-                          const InDetDD::SiDetectorElement* element,
-                          const PixelID& pixelID) const;
-
-    // ITk: checkSizeZ compares cluster sizeZ with expected cluster size for this cluster position (+/-200 mm for beam spread)
-    // checkSizeZ()=-1 if cluster is too small
-    // checkSizeZ()=0 if cluster sizeZ is within allowed range
-    // checkSizeZ()=1 if cluster is too large
-    // in the future, it may be changed to return deltaSizeZ 
-    int checkSizeZ(int colmin, int colmax, int row, const InDetDD::SiDetectorElement* element) const;
-    // this function returns expected sizeZ
-    int expectedSizeZ(int colmin, int colmax, int row, const InDetDD::SiDetectorElement* element) const;
-    // this function returns size of the maximum gap between two cluster fragments  
-    int maxGap(int colmin, int colmax, int row, const InDetDD::SiDetectorElement* element) const;
-    //------- end of declaration of new functions
-
-
     ServiceHandle<IBLParameterSvc>                      m_IBLParameterSvc;
     /// for cluster splitting
     BooleanProperty m_emulateSplitter{this, "EmulateSplitting", false, "don't split - only emulate the split"};
@@ -160,13 +135,6 @@ namespace InDet {
     ToolHandle<InDet::IPixelClusterSplitProbTool> m_splitProbTool{this, "SplitProbTool", "", "ToolHandle for the split probability tool"};
     ToolHandle<InDet::IPixelClusterSplitter> m_clusterSplitter{this, "ClusterSplitter", "", "ToolHandle for the split probability tool"};
     BooleanProperty m_doIBLSplitting{this, "DoIBLSplitting", false};
-    BooleanProperty m_doMergeBrokenClusters{this, "DoMergeBrokenClusters", false, "ITk: switch to turn ON/OFF merging of broken clusters"};
-    BooleanProperty m_doRemoveClustersWithToTequalSize{this, "DoRemoveClustersWithToTequalSize", false, "ITk: switch to remove clusters with ToT=size"};
-    BooleanProperty m_doCheckSizeBeforeMerging{this, "DoCheckSizeBeforeMerging", false, "ITk: switch to check size of to-be-merged clusters"};
-    DoubleProperty m_beam_spread{this, "BeamSpread", 200.0, "ITK: size of the luminous region, need to check cluster size"};
-    DoubleProperty m_lossThreshold{this, "LossProbability", 0.001, "ITk: maximum probability to loose N_mis consequitive pixels in a cluster"};
-    DoubleProperty m_pixelEff{this, "MinPixelEfficiency", 0.90, "ITK: pixel efficiency (it depends on cluster eta; use smaller pixel efficiency)"};
-    IntegerArrayProperty m_minToT{this, "ToTMinCut", {0,0,0,0,0,0,0}, "Minimum ToT cut [IBL, b-layer, L1, L2, Endcap, DBM, ITk extra"};
 
     SG::ReadCondHandleKey<InDetDD::SiDetectorElementCollection> m_pixelDetEleCollKey{this, "PixelDetEleCollKey", "PixelDetectorElementCollection", "Key of SiDetectorElementCollection for Pixel"};