Revert of Show service worker navigation preload requests in DevTools Network tab

third_party/WebKit/LayoutTests/http/tests/inspector/service-workers/resources/navigation-preload-worker.php

Index: third_party/WebKit/LayoutTests/http/tests/inspector/service-workers/resources/navigation-preload-worker.php
diff --git a/third_party/WebKit/LayoutTests/http/tests/inspector/service-workers/resources/navigation-preload-worker.php b/third_party/WebKit/LayoutTests/http/tests/inspector/service-workers/resources/navigation-preload-worker.php
deleted file mode 100644
index 0628400009093c99750af6c05204807dd838d668..0000000000000000000000000000000000000000
--- a/third_party/WebKit/LayoutTests/http/tests/inspector/service-workers/resources/navigation-preload-worker.php
+++ /dev/null
@@ -1,29 +0,0 @@
-<?php
-// generate_token.py  http://127.0.0.1:8000 ServiceWorkerNavigationPreload -expire-timestamp=2000000000
-header("Origin-Trial: AsAA4dg2Rm+GSgnpyxxnpVk1Bk8CcE+qVBTDpPbIFNscyNRJOdqw1l0vkC4dtsGm1tmP4ZDAKwycQDzsc9xr7gMAAABmeyJvcmlnaW4iOiAiaHR0cDovLzEyNy4wLjAuMTo4MDAwIiwgImZlYXR1cmUiOiAiU2VydmljZVdvcmtlck5hdmlnYXRpb25QcmVsb2FkIiwgImV4cGlyeSI6IDIwMDAwMDAwMDB9");
-header('Content-Type: application/javascript');
-?>
-
-self.addEventListener('activate', event => {
-    event.waitUntil(
-      registration.navigationPreload.enable()
-        .then(_ => registration.navigationPreload.setHeaderValue('hello')));
-  });
-
-self.addEventListener('fetch', event => {
-    if (event.request.url.indexOf('BrokenChunked') != -1) {
-      event.respondWith(
-        event.preloadResponse
-          .catch(_ => { return new Response('dummy'); }));
-      return;
-    }
-    if (event.request.url.indexOf('RedirectError') != -1) {
-      event.respondWith(
-        event.preloadResponse
-          .catch(_ => { return new Response('dummy'); }));
-      return;
-    }
-    if (event.preloadResponse) {
-      event.respondWith(event.preloadResponse);
-    }
-  });