Updated licenses + removed extra line of code

Author: bkonyi

shell/platform/darwin/ios/framework/Source/FlutterHeadlessDartRunner.mm

@@ -45,7 +45,6 @@
 @implementation FlutterHeadlessDartRunner {
   shell::ThreadHost _threadHost;
   std::unique_ptr<shell::Shell> _shell;
-  shell::PlatformMessageRouter _message_router;
 }
 
 - (instancetype)init {

travis/licenses_golden/licenses_flutter

@@ -206,6 +206,7 @@ FILE: ../../../flutter/shell/platform/darwin/desktop/Info.plist
 FILE: ../../../flutter/shell/platform/darwin/ios/framework/Flutter.podspec
 FILE: ../../../flutter/shell/platform/darwin/ios/framework/Info.plist
 FILE: ../../../flutter/shell/platform/darwin/ios/framework/module.modulemap
+FILE: ../../../flutter/shell/platform/darwin/ios/headless_platform_view_ios.mm
 FILE: ../../../flutter/shell/platform/embedder/assets/EmbedderInfo.plist
 FILE: ../../../flutter/shell/platform/embedder/assets/embedder.modulemap
 FILE: ../../../flutter/shell/platform/embedder/fixtures/simple_main.dart
@@ -489,13 +490,15 @@ FILE: ../../../flutter/flutter_kernel_transformers/lib/track_widget_constructor_
 FILE: ../../../flutter/lib/ui/isolate_name_server.dart
 FILE: ../../../flutter/lib/ui/painting/image_encoding.cc
 FILE: ../../../flutter/lib/ui/painting/image_encoding.h
+FILE: ../../../flutter/lib/ui/plugins.dart
 FILE: ../../../flutter/lib/ui/text/asset_manager_font_provider.cc
 FILE: ../../../flutter/lib/ui/text/asset_manager_font_provider.h
 FILE: ../../../flutter/shell/platform/android/apk_asset_provider.h
 FILE: ../../../flutter/shell/platform/darwin/ios/framework/Headers/FlutterPluginAppLifeCycleDelegate.h
 FILE: ../../../flutter/shell/platform/darwin/ios/framework/Source/FlutterPluginAppLifeCycleDelegate.mm
 FILE: ../../../flutter/shell/platform/darwin/ios/framework/Source/accessibility_text_entry.h
 FILE: ../../../flutter/shell/platform/darwin/ios/framework/Source/accessibility_text_entry.mm
+FILE: ../../../flutter/shell/platform/darwin/ios/headless_platform_view_ios.h
 ----------------------------------------------------------------------------------------------------
 Copyright 2018 The Chromium Authors. All rights reserved.
 
@@ -589,6 +592,7 @@ FILE: ../../../flutter/shell/platform/android/android_shell_holder.cc
 FILE: ../../../flutter/shell/platform/android/android_shell_holder.h
 FILE: ../../../flutter/shell/platform/android/platform_message_response_android.cc
 FILE: ../../../flutter/shell/platform/android/platform_message_response_android.h
+FILE: ../../../flutter/shell/platform/darwin/ios/framework/Source/FlutterAppDelegate_Internal.h
 FILE: ../../../flutter/shell/platform/darwin/ios/framework/Source/platform_message_response_darwin.h
 FILE: ../../../flutter/shell/platform/darwin/ios/framework/Source/platform_message_response_darwin.mm
 ----------------------------------------------------------------------------------------------------