Deletes remaining traces of gyp in services/ and mojo/

services/shell/public/service_manifest.gypi

-# Copyright 2016 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.
-
-{
-  'variables': {
-    'variables': {
-      'name%': '<(name)',
-      'type%': '<(type)',
-      'base_manifest%': 'none',
-      'packaged_manifests%': []
-    },
-    'type%': '<(type)',
-    'name%': '<(name)',
-    'base_manifest%': '<(base_manifest)',
-    'manifest_collator_script%':
-        '<(DEPTH)/services/shell/public/tools/manifest/manifest_collator.py',
-    'packaged_manifests%': '<(packaged_manifests)',
-    'source_manifest%': '<(source_manifest)',
-    'conditions': [
-      ['type=="mojo"', {
-        'output_manifest%': '<(PRODUCT_DIR)/Packages/<(name)/manifest.json',
-      }, {
-        'output_manifest%': '<(PRODUCT_DIR)/<(name)_manifest.json',
-      }],
-      ['base_manifest!="none"', {
-        'extra_args%': [
-          '--base-manifest=<(base_manifest)',
-          '<@(packaged_manifests)',
-        ],
-      }, {
-        'extra_args%': [
-          '<@(packaged_manifests)',
-        ],
-      }]
-    ],
-  },
-  'actions': [{
-    'action_name': '<(_target_name)_collation',
-    'inputs': [
-      '<(manifest_collator_script)',
-      '<(source_manifest)',
-    ],
-    'outputs': [
-      '<(output_manifest)',
-    ],
-    'action': [
-      'python',
-      '<(manifest_collator_script)',
-      '--name', '<(name)',
-      '--parent=<(source_manifest)',
-      '--output=<(output_manifest)',
-      '<@(extra_args)',
-    ],
-  }],
-}