DatItems don't know about filtering

SabreTools.DatItems/Port.cs

@@ -3,7 +3,6 @@ using System.Linq;
 using System.Xml.Serialization;
 
 using SabreTools.Core;
-using SabreTools.Filtering;
 using Newtonsoft.Json;
 
 namespace SabreTools.DatItems
@@ -124,30 +123,6 @@ namespace SabreTools.DatItems
 
         #region Filtering
 
-        /// <inheritdoc/>
-        public override bool PassesFilter(Cleaner cleaner, bool sub = false)
-        {
-            // Check common fields first
-            if (!base.PassesFilter(cleaner, sub))
-                return false;
-
-            // Filter on tag
-            if (!Filter.PassStringFilter(cleaner.DatItemFilter.Tag, Tag))
-                return false;
-
-            // Filter on individual analogs
-            if (AnalogsSpecified)
-            {
-                foreach (Analog analog in Analogs)
-                {
-                    if (!analog.PassesFilter(cleaner, true))
-                        return false;
-                }
-            }
-
-            return true;
-        }
-
         /// <inheritdoc/>
         public override void RemoveFields(
             List<DatItemField> datItemFields,