[Findit] Re-org code.

appengine/findit/common/codereview.py

Index: appengine/findit/common/codereview.py
diff --git a/appengine/findit/common/codereview.py b/appengine/findit/common/codereview.py
deleted file mode 100644
index 19e0a8a86e6e38ee51156e7978176ac23c9a13f6..0000000000000000000000000000000000000000
--- a/appengine/findit/common/codereview.py
+++ /dev/null
@@ -1,18 +0,0 @@
-# Copyright 2016 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.
-
-
-# TODO(http://crbug.com/660462): this needs to actually do something.
-# pylint: disable=E0711, W0613, R0201
-class CodeReview(object):  # pragma: no cover
-  """An interface to interact with code review."""
-
-  def PostMessage(self, codereview_url, message):
-    """Posts the given message to the CL codereview of the specified url.
-
-    Args:
-      codereview_url(str): The url to a CL codereview.
-      message(str): The message to be posted to the codereview.
-    """
-    raise NotImplemented()