diff --git a/src/xsd4/util.xsd b/src/xsd4/util.xsd
index 10666143..f070c961 100644
--- a/src/xsd4/util.xsd
+++ b/src/xsd4/util.xsd
@@ -1115,7 +1115,6 @@
       <xs:appinfo>
         <xse:parent namespace="http://wixtoolset.org/schemas/v4/wxs" ref="CreateFolder" />
         <xse:parent namespace="http://wixtoolset.org/schemas/v4/wxs" ref="File" />
-        <xse:parent namespace="http://wixtoolset.org/schemas/v4/wxs" ref="Registry" />
         <xse:parent namespace="http://wixtoolset.org/schemas/v4/wxs" ref="RegistryKey" />
         <xse:parent namespace="http://wixtoolset.org/schemas/v4/wxs" ref="RegistryValue" />
         <xse:parent namespace="http://wixtoolset.org/schemas/v4/wxs" ref="ServiceInstall" />
diff --git a/tools/SchemaValidator/Program.cs b/tools/SchemaValidator/Program.cs
index 24060dc6..6d6dae4e 100644
--- a/tools/SchemaValidator/Program.cs
+++ b/tools/SchemaValidator/Program.cs
@@ -3,12 +3,7 @@
 namespace WixBuildTools.SchemaValidator;
 
 using System;
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
-using System.Reflection;
 using System.Xml;
-using System.Xml.Linq;
 using System.Xml.Schema;
 
 public sealed class Program