DatItems don't know about replacing fields

SabreTools.DatItems/Analog.cs

@@ -1,5 +1,4 @@
-using System.Collections.Generic;
-using System.Xml.Serialization;
+using System.Xml.Serialization;
 
 using SabreTools.Core;
 using Newtonsoft.Json;
@@ -70,30 +69,5 @@ namespace SabreTools.DatItems
         }
 
         #endregion
-
-        #region Sorting and Merging
-
-        /// <inheritdoc/>
-        public override void ReplaceFields(
-            DatItem item,
-            List<DatItemField> datItemFields,
-            List<MachineField> machineFields)
-        {
-            // Replace common fields first
-            base.ReplaceFields(item, datItemFields, machineFields);
-
-            // If we don't have a Analog to replace from, ignore specific fields
-            if (item.ItemType != ItemType.Analog)
-                return;
-
-            // Cast for easier access
-            Analog newItem = item as Analog;
-
-            // Replace the fields
-            if (datItemFields.Contains(DatItemField.Analog_Mask))
-                Mask = newItem.Mask;
-        }
-
-        #endregion
     }
 }