tzname check fix

test/mjsunit/regress/regress-487322.js

Index: test/mjsunit/regress/regress-487322.js
diff --git a/test/mjsunit/regress/regress-487322.js b/test/mjsunit/regress/regress-487322.js
deleted file mode 100644
index 4b6bac3c7fa18b32e401c230e199455263806ddc..0000000000000000000000000000000000000000
--- a/test/mjsunit/regress/regress-487322.js
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright 2015 the V8 project authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-if (this.Intl) {
-  // Normalizes Kat{h,}mandu (chromium:487322)
-  df = new Intl.DateTimeFormat('en-US', {'timeZone': 'Asia/Katmandu'})
-  assertEquals('Asia/Katmandu', df.resolvedOptions().timeZone);
-
-  df = new Intl.DateTimeFormat('en-US', {'timeZone': 'Asia/Kathmandu'})
-  assertEquals('Asia/Katmandu', df.resolvedOptions().timeZone);
-
-  // Throws for unsupported time zones.
-  assertThrows(() => Intl.DateTimeFormat(undefined, {timeZone: 'Aurope/Paris'}));
-}