Upstream service worker header test to WPT

third_party/WebKit/LayoutTests/http/tests/serviceworker/resources/iso-latin1-header-worker.js

Index: third_party/WebKit/LayoutTests/http/tests/serviceworker/resources/iso-latin1-header-worker.js
diff --git a/third_party/WebKit/LayoutTests/http/tests/serviceworker/resources/iso-latin1-header-worker.js b/third_party/WebKit/LayoutTests/http/tests/serviceworker/resources/iso-latin1-header-worker.js
deleted file mode 100644
index 3ab5c7e73186b49d88eaae971ce8c2a6bef5d431..0000000000000000000000000000000000000000
--- a/third_party/WebKit/LayoutTests/http/tests/serviceworker/resources/iso-latin1-header-worker.js
+++ /dev/null
@@ -1,12 +0,0 @@
-self.addEventListener('fetch', function(event) {
-    var url = event.request.url;
-    if (url.indexOf('dummy?test') == -1) {
-      return;
-    }
-
-    event.respondWith(new Promise(function(resolve) {
-        var headers = new Headers;
-        headers.append('TEST', 'ßÀ¿'); // header value holds the Latin1 (ISO8859-1) string.
-        resolve(new Response('hello world', {'headers': headers}));
-      }));
-  });