diff --git a/harness/assert.js b/harness/assert.js
index aee3b871df21e0564a3d35d4a29e0f045e4bbfce..58e98e37b720770099a90e32b39dd19eb6cf22f7 100644
--- a/harness/assert.js
+++ b/harness/assert.js
@@ -27,12 +27,7 @@ assert._isSameValue = function (a, b) {
 };
 
 assert.sameValue = function (actual, expected, message) {
-  try {
-    if (assert._isSameValue(actual, expected)) {
-      return;
-    }
-  } catch (error) {
-    $ERROR(message + ' (_isSameValue operation threw) ' + error);
+  if (assert._isSameValue(actual, expected)) {
     return;
   }
 
diff --git a/test/intl402/Segmenter/constructor/subclass.js b/test/intl402/Segmenter/constructor/subclass.js
deleted file mode 100644
index 67282cc0288d531ec2bfac92b49d3e04698b11a1..0000000000000000000000000000000000000000
--- a/test/intl402/Segmenter/constructor/subclass.js
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright 2018 Igalia, S.L. All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-
-/*---
-esid: sec-Intl.Segmenter
-description: The prototype of the Intl.Segmenter constructor is %FunctionPrototype%.
-info: |
-    Unless specified otherwise in this document, the objects, functions, and constructors described in this standard are subject to the generic requirements and restrictions specified for standard built-in ECMAScript objects in the ECMAScript 2019 Language Specification, 10th edition, clause 17, or successor.
-    Unless otherwise specified every built-in function object has the %FunctionPrototype% object as the initial value of its [[Prototype]] internal slot.
-features: [Intl.Segmenter]
----*/
-
-class CustomSegmenter extends Intl.Segmenter {
-  constructor(...args) {
-    super(...args);
-    this.isCustom = true;
-  }
-}
-
-let cs = new CustomSegmenter();
-
-assert.sameValue(Object.getPrototypeOf(CustomSegmenter), Intl.Segmenter, 'Object.getPrototypeOf(CustomSegmenter) returns the value of `Intl.Segmenter` (undefined)');
-assert.sameValue(Object.getPrototypeOf(CustomSegmenter.prototype), Intl.Segmenter.prototype, 'Object.getPrototypeOf(CustomSegmenter.prototype) returns the value of `Intl.Segmenter.prototype` (undefined)');
-assert.sameValue(
-  cs instanceof Intl.Segmenter,
-  'CustomSegmenter instance is instanceof Intl.Segmenter',
-  'The result of `(cs instanceof Intl.Segmenter)` is "CustomSegmenter instance is instanceof Intl.Segmenter"'
-);