Remove GYP files.

ios/testing/earl_grey/earl_grey_support.gyp

Index: ios/testing/earl_grey/earl_grey_support.gyp
diff --git a/ios/testing/earl_grey/earl_grey_support.gyp b/ios/testing/earl_grey/earl_grey_support.gyp
deleted file mode 100644
index 8be3c74d4e3825bf5eeecc759f7b0e8b8dfce35d..0000000000000000000000000000000000000000
--- a/ios/testing/earl_grey/earl_grey_support.gyp
+++ /dev/null
@@ -1,26 +0,0 @@
-# Copyright 2014 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/testing/earl_grey:earl_grey_support
-      'target_name': 'earl_grey_support',
-      'type': 'static_library',
-      'dependencies': [
-        '<(DEPTH)/ios/third_party/earl_grey/earl_grey.gyp:EarlGrey',
-      ],
-      'sources': [
-        'disabled_test_macros.h',
-        'wait_util.h',
-        'wait_util.mm',
-      ],
-      'include_dirs': [
-        '../../..',
-      ],
-    },
-  ],
-}