Remove PPAPI gyp files.

ppapi/ppapi_ipc.gypi

Index: ppapi/ppapi_ipc.gypi
diff --git a/ppapi/ppapi_ipc.gypi b/ppapi/ppapi_ipc.gypi
deleted file mode 100644
index 132c0f11e9228110c4e5408183cccf9d86a3c95f..0000000000000000000000000000000000000000
--- a/ppapi/ppapi_ipc.gypi
+++ /dev/null
@@ -1,48 +0,0 @@
-# Copyright (c) 2012 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.
-
-{
-  'target_defaults': {
-    'variables': {
-      'nacl_win64_target': 0,
-      'ppapi_ipc_target': 0,
-    },
-    'target_conditions': [
-      # This part is shared between the targets defined below.
-      ['ppapi_ipc_target==1', {
-        'sources': [
-          'proxy/nacl_message_scanner.cc',
-          'proxy/nacl_message_scanner.h',
-          'proxy/ppapi_messages.cc',
-          'proxy/ppapi_messages.h',
-          'proxy/ppapi_param_traits.cc',
-          'proxy/ppapi_param_traits.h',
-          'proxy/raw_var_data.cc',
-          'proxy/raw_var_data.h',
-          'proxy/resource_message_params.cc',
-          'proxy/resource_message_params.h',
-          'proxy/serialized_flash_menu.cc',
-          'proxy/serialized_flash_menu.h',
-          'proxy/serialized_handle.cc',
-          'proxy/serialized_handle.h',
-          'proxy/serialized_structs.cc',
-          'proxy/serialized_structs.h',
-          'proxy/serialized_var.cc',
-          'proxy/serialized_var.h',
-          'proxy/var_serialization_rules.h',
-        ],
-        'include_dirs': [
-          '..',
-        ],
-        'target_conditions': [
-          ['>(nacl_untrusted_build)==1 or >(nacl_win64_target)==1', {
-            'sources!': [
-              'proxy/serialized_flash_menu.cc',
-            ],
-          }],
-        ],
-      }],
-    ],
-  },
-}