[Android] Remove org.apache.http from proguard flags and gn.

content/public/android/BUILD.gn

 # 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.
 
 import("//build/config/android/config.gni")
 import("//build/config/android/rules.gni")
 
 android_aidl("common_aidl") {
   interface_file = "java/src/org/chromium/content/common/common.aidl"
   import_include = [ "java/src" ]
@@ skipping 376 matching lines @@
     "//media/capture/content/android:screen_capture_java",
     "//media/capture/video/android:capture_java",
     "//mojo/android:system_java",
     "//mojo/public/interfaces/bindings/tests:test_interfaces_java",
     "//mojo/public/java:bindings_java",
     "//mojo/public/java:system_java",
     "//net/android:net_java",
     "//net/android:net_java_test_support",
     "//third_party/android_support_test_runner:rules_java",
     "//third_party/android_support_test_runner:runner_java",
-    "//third_party/android_tools:legacy_http_javalib",
     "//third_party/junit",
     "//ui/android:ui_java",
   ]
 
   java_files = [
     "javatests/src/org/chromium/content/browser/AddressDetectionTest.java",
     "javatests/src/org/chromium/content/browser/BrowserStartupControllerTest.java",
     "javatests/src/org/chromium/content/browser/ChildProcessLauncherTest.java",
     "javatests/src/org/chromium/content/browser/ClickListenerTest.java",
     "javatests/src/org/chromium/content/browser/ClipboardTest.java",
@@ skipping 71 matching lines @@
     "junit/src/org/chromium/content/browser/installedapp/InstalledAppProviderTest.java",
   ]
   deps = [
     ":content_java",
     "//base:base_java",
     "//base:base_java_test_support",
     "//mojo/public/java:bindings_java",
     "//third_party/WebKit/public:android_mojo_bindings_java",
   ]
 }