Remove all references to GYP

webrtc/build/ios/merge_ios_libs.gyp

-# Copyright (c) 2015 The WebRTC project authors. All Rights Reserved.
-#
-# Use of this source code is governed by a BSD-style license
-# that can be found in the LICENSE file in the root of the source
-# tree. An additional intellectual property rights grant can be found
-# in the file PATENTS.  All contributing project authors may
-# be found in the AUTHORS file in the root of the source tree.
-
-{
-  'includes': ['../common.gypi',],
-  'conditions': [
-    ['OS=="ios" or OS=="mac"', {
-      'targets': [
-        {
-          'target_name': 'rtc_sdk_peerconnection_objc_no_op',
-          'includes': [ 'objc_app.gypi' ],
-          'type': 'executable',
-          'dependencies': [
-            '<(webrtc_root)/sdk/sdk.gyp:rtc_sdk_peerconnection_objc',
-          ],
-          'sources': ['no_op.cc',],
-        },
-      ],
-    }]
-  ],
-}