Do not store (unused) property changes data in tx state

community/kernel/src/main/java/org/neo4j/kernel/impl/api/state/TxState.java

@@ -113,8 +113,6 @@ public class TxState implements TransactionState, RelationshipVisitor.Home
     private DiffSets<SchemaIndexDescriptor> indexChanges;
     private DiffSets<ConstraintDescriptor> constraintsChanges;
 
-    private PropertyChanges propertyChangesForNodes;
-
     private RemovalsCountingDiffSets nodes;
     private RemovalsCountingRelationshipsDiffSets relationships;
 
@@ -531,15 +529,13 @@ public void nodeDoAddProperty( long nodeId, int newPropertyKeyId, Value value )
     {
         NodeStateImpl nodeState = getOrCreateNodeState( nodeId );
         nodeState.addProperty( newPropertyKeyId, value );
-        nodePropertyChanges().addProperty( nodeId, newPropertyKeyId, value );
         dataChanged();
     }
 
     @Override
     public void nodeDoChangeProperty( long nodeId, int propertyKeyId, Value replacedValue, Value newValue )
     {
         getOrCreateNodeState( nodeId ).changeProperty( propertyKeyId, newValue );
-        nodePropertyChanges().changeProperty( nodeId, propertyKeyId, replacedValue, newValue );
         dataChanged();
     }
 
@@ -576,7 +572,6 @@ public void graphDoReplaceProperty( int propertyKeyId, Value replacedValue, Valu
     public void nodeDoRemoveProperty( long nodeId, int propertyKeyId, Value removedValue )
     {
         getOrCreateNodeState( nodeId ).removeProperty( propertyKeyId, removedValue );
-        nodePropertyChanges().removeProperty( nodeId, propertyKeyId, removedValue );
         dataChanged();
     }
 
@@ -1229,11 +1224,6 @@ private boolean hasNodeState( long nodeId )
         return nodeStatesMap != null && nodeStatesMap.containsKey( nodeId );
     }
 
-    private PropertyChanges nodePropertyChanges()
-    {
-        return propertyChangesForNodes == null ? propertyChangesForNodes = new PropertyChanges( collectionsFactory ) : propertyChangesForNodes;
-    }
-
     @Override
     public PrimitiveLongResourceIterator augmentNodesGetAll( PrimitiveLongIterator committed )
     {
@@ -1287,10 +1277,6 @@ public void release()
         {
             relationshipStatesMap.close();
         }
-        if ( propertyChangesForNodes != null )
-        {
-            propertyChangesForNodes.release();
-        }
         if ( nodes != null && nodes.removedFromAdded != null )
         {
             nodes.removedFromAdded.close();