Remove deprecated UrlRequestContextConfig & HttpUrlRequestFactoryConfig

components/cronet/android/api/src/org/chromium/net/HttpUrlRequestFactoryConfig.java

-// Copyright 2014 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.
-
-package org.chromium.net;
-
-/**
- * A config for HttpUrlRequestFactory, which allows runtime configuration of
- * HttpUrlRequestFactory.
- * @deprecated Use {@link CronetEngine.Builder} instead.
- */
-@Deprecated
-public class HttpUrlRequestFactoryConfig extends UrlRequestContextConfig {
-
-    /**
-     * Default config enables SPDY, QUIC, in memory http cache.
-     */
-    public HttpUrlRequestFactoryConfig() {
-        super();
-    }
-}