Remove all .gyp and .gypi files.

build/grit_target.gypi

-# Copyright (c) 2011 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.
-
-# This file is meant to be included into a target that will have one or more
-# uses of grit_action.gypi. To use this the following variables need to be
-# defined:
-#   grit_out_dir: string: the output directory path
-
-# DO NOT USE THIS FILE. Instead, use qualified includes.
-# TODO: Convert everything to qualified includes, and delete this file,
-# http://crbug.com/401588
-{
-  'conditions': [
-    # If the target is a direct binary, it needs to be able to find the header,
-    # otherwise it probably a supporting target just for grit so the include
-    # dir needs to be set on anything that depends on this action.
-    ['_type=="executable" or _type=="shared_library" or \
-      _type=="loadable_module" or _type=="static_library"', {
-      'include_dirs': [
-        '<(grit_out_dir)',
-      ],
-    }, {
-      'direct_dependent_settings': {
-        'include_dirs': [
-          '<(grit_out_dir)',
-        ],
-      },
-    }],
-  ],
-}