Revert "Add a histogram (Net.PacResultForStrippedUrl) that estimates how often PAC scripts depend o…

net/data/proxy_resolver_v8_tracing_unittest/alert_url.js

Index: net/data/proxy_resolver_v8_tracing_unittest/alert_url.js
diff --git a/net/data/proxy_resolver_v8_tracing_unittest/alert_url.js b/net/data/proxy_resolver_v8_tracing_unittest/alert_url.js
deleted file mode 100644
index 3cc14c946f15b946c6e46f34478c7ad82b31702f..0000000000000000000000000000000000000000
--- a/net/data/proxy_resolver_v8_tracing_unittest/alert_url.js
+++ /dev/null
@@ -1,8 +0,0 @@
-// Copyright 2016 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-function FindProxyForURL(url, host) {
-  alert(url);
-  return "PROXY foobar:99";
-}