Remove GYP files from components.

components/handoff.gypi

Index: components/handoff.gypi
diff --git a/components/handoff.gypi b/components/handoff.gypi
deleted file mode 100644
index 264e031977b9e5a7b4d65711bcdf2e1af02f6679..0000000000000000000000000000000000000000
--- a/components/handoff.gypi
+++ /dev/null
@@ -1,33 +0,0 @@
-# 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.
-
-{
-  'targets': [
-    {
-      # GN version: //components/handoff
-      'target_name': 'handoff',
-      'type': 'static_library',
-      'include_dirs': [
-        '..',
-      ],
-      'conditions': [
-        ['OS=="mac" or OS=="ios"', {
-          'sources': [
-            'handoff/handoff_utility.h',
-            'handoff/handoff_utility.mm',
-          ],
-        }],
-        ['OS=="mac"', {
-          'sources': [
-            'handoff/handoff_manager.h',
-            'handoff/handoff_manager.mm',
-          ],
-          'dependencies': [
-            '../base/base.gyp:base',
-          ],
-        }],
-      ],
-    },
-  ],
-}