diff --git a/src/org/mozilla/javascript/NativeReflect.java b/src/org/mozilla/javascript/NativeReflect.java
index d7f1a05618..f8d342b352 100644
--- a/src/org/mozilla/javascript/NativeReflect.java
+++ b/src/org/mozilla/javascript/NativeReflect.java
@@ -401,16 +401,4 @@ private static ScriptableObject checkTarget(Object[] args) {
         }
         return ScriptableObject.ensureScriptableObject(args[0]);
     }
-
-    private void defineProperty(
-            Scriptable scope,
-            String name,
-            int length,
-            Callable target,
-            int attributes,
-            int propertyAttributes) {
-        LambdaFunction f = new LambdaFunction(scope, name, length, target);
-        f.setStandardPropertyAttributes(propertyAttributes);
-        defineProperty(name, f, attributes);
-    }
 }
diff --git a/testsrc/test262.properties b/testsrc/test262.properties
index 2f644adc2e..4fedae70a0 100644
--- a/testsrc/test262.properties
+++ b/testsrc/test262.properties
@@ -668,7 +668,7 @@ built-ins/isNaN 7/16 (43.75%)
 
 ~built-ins/IteratorPrototype
 
-built-ins/JSON 28/140 (20.0%)
+built-ins/JSON 27/140 (19.29%)
     parse/builtin.js
     parse/revived-proxy.js
     parse/reviver-array-define-prop-err.js