Remove GYP files in breakpad, build, and tools.

tools/android/file_poller/file_poller.gyp

Index: tools/android/file_poller/file_poller.gyp
diff --git a/tools/android/file_poller/file_poller.gyp b/tools/android/file_poller/file_poller.gyp
deleted file mode 100644
index 097344d2d29937d49bae28f12b937aadab8db3f6..0000000000000000000000000000000000000000
--- a/tools/android/file_poller/file_poller.gyp
+++ /dev/null
@@ -1,18 +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.
-
-{
-  'targets': [
-    {
-      'target_name': 'file_poller',
-      'type': 'executable',
-      'dependencies': [
-        '../../../base/base.gyp:base',
-      ],
-      'sources': [
-        'file_poller.cc',
-      ],
-    },
-  ],
-}