Remove the hack to concat .d files into a single deps file.

test/make/gyptest-dependencies.py

Index: test/make/gyptest-dependencies.py
===================================================================
--- test/make/gyptest-dependencies.py	(revision 1360)
+++ test/make/gyptest-dependencies.py	(working copy)
@@ -1,6 +1,6 @@
 #!/usr/bin/env python
 
-# Copyright (c) 2009 Google Inc. All rights reserved.
+# Copyright (c) 2012 Google Inc. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
@@ -24,8 +24,4 @@
 # Build a second time to make sure we generate all.deps.
 test.build('dependencies.gyp', test.ALL)
 
-all_deps_file = test.built_file_path(".deps/all.deps")
-test.must_contain(all_deps_file, "main.h")
-test.must_contain(all_deps_file, "cmd_")
-
 test.pass_test()