Remove GYP files from components.

components/about_handler.gypi

Index: components/about_handler.gypi
diff --git a/components/about_handler.gypi b/components/about_handler.gypi
deleted file mode 100644
index fce5b8c8b5561e6b47ddad17c89ad03d09ccb64a..0000000000000000000000000000000000000000
--- a/components/about_handler.gypi
+++ /dev/null
@@ -1,27 +0,0 @@
-# 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.
-
-{
-  'targets': [
-    {
-      # GN version: //components/about_handler
-      'target_name': 'about_handler',
-      'type': 'static_library',
-      'dependencies': [
-        '../base/base.gyp:base',
-        '../net/net.gyp:net',
-      ],
-      'include_dirs': [
-        '..',
-      ],
-      'sources': [
-        # Note: sources list duplicated in GN build.
-        'about_handler/about_protocol_handler.cc',
-        'about_handler/about_protocol_handler.h',
-        'about_handler/url_request_about_job.cc',
-        'about_handler/url_request_about_job.h',
-      ],
-    },
-  ],
-}