Remove GYP files.

ios/consumer/ios_consumer_base.gyp

Index: ios/consumer/ios_consumer_base.gyp
diff --git a/ios/consumer/ios_consumer_base.gyp b/ios/consumer/ios_consumer_base.gyp
deleted file mode 100644
index 0b1c7492f8d0e53638aefc3f6aa2f3c52ad5f6fa..0000000000000000000000000000000000000000
--- a/ios/consumer/ios_consumer_base.gyp
+++ /dev/null
@@ -1,25 +0,0 @@
-# Copyright 2013 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': {
-    'chromium_code': 1,
-   },
-  'targets': [
-    {
-      # GN version: //ios/public/consumer/base
-      'target_name': 'ios_consumer_base',
-      'type': 'static_library',
-      'dependencies': [
-        '../../base/base.gyp:base',
-      ],
-      'include_dirs': [
-        '../..',
-      ],
-      'sources': [
-        '../public/consumer/base/debugger.h',
-        'base/debugger.mm',
-      ],
-    },
-  ],
-}