Remove GYP files from components.

components/metrics_services_manager.gypi

-# 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/metrics_services_manager
-      'target_name': 'metrics_services_manager',
-      'type': 'static_library',
-      'include_dirs': [
-        '..',
-      ],
-      'dependencies': [
-        '../base/base.gyp:base',
-        'metrics',
-        'rappor',
-        'variations',
-      ],
-      'sources': [
-        # Note: sources list duplicated in GN build.
-        'metrics_services_manager/metrics_services_manager.cc',
-        'metrics_services_manager/metrics_services_manager.h',
-        'metrics_services_manager/metrics_services_manager_client.h',
-      ],
-    },
-  ],
-}