Remove the old package manager

mojo/shell/query_util.cc

-// Copyright 2015 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.
-
-#include "mojo/shell/query_util.h"
-
-#include "base/strings/string_util.h"
-
-namespace mojo {
-namespace shell {
-
-GURL GetBaseURLAndQuery(const GURL& url, std::string* query) {
-  if (!url.has_query()) {
-    if (query)
-      *query = "";
-    return url;
-  }
-
-  if (query)
-    *query = "?" + url.query();
-  GURL::Replacements repl;
-  repl.SetQueryStr("");
-  std::string result = url.ReplaceComponents(repl).spec();
-
-  // Remove the dangling '?' because it's ugly.
-  base::ReplaceChars(result, "?", "", &result);
-  return GURL(result);
-}
-
-}  // namespace shell
-}  // namespace mojo