Remove a no-longer-used file (build/support/support.gyp)....

support.gyp

Index: support.gyp
===================================================================
--- support.gyp	(revision 72168)
+++ support.gyp	(working copy)
@@ -1,21 +0,0 @@
-# Copyright (c) 2009 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,
-  },
-  'includes': [
-    '../../common.gypi',
-  ],
-  'targets': [
-    {
-      'target_name': 'support',
-      'type': 'none',
-    },
-    # TODO(slightlyoff)
-  ],
-}
-
-# vim: shiftwidth=2:et:ai:tabstop=2