Remove the dependency on json schema compiler.

tools/json_schema_compiler/memoize.py

Index: tools/json_schema_compiler/memoize.py
diff --git a/tools/json_schema_compiler/memoize.py b/tools/json_schema_compiler/memoize.py
deleted file mode 100644
index 228e7e3f82d26d8a23d3557a97b02624c1c73cc3..0000000000000000000000000000000000000000
--- a/tools/json_schema_compiler/memoize.py
+++ /dev/null
@@ -1,14 +0,0 @@
-# Copyright 2013 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.
-
-def memoize(fn):
-  '''Decorates |fn| to memoize.
-  '''
-  memory = {}
-  def impl(*args, **optargs):
-    full_args = args + tuple(optargs.iteritems())
-    if full_args not in memory:
-      memory[full_args] = fn(*args, **optargs)
-    return memory[full_args]
-  return impl