Revert "Merge tag 'v3.0.1-javalite'"

This reverts commit f4fe6ab6726e235448020c5fd203e4fc1dad728e, reversing
changes made to 6e463f53f1f82dfe0a74e25ae729601a9678730c.

Change-Id: I451a710a7b755868c8d6a8de56a0b9bb55fedad6
(cherry picked from commit 61f57327388b1c133011da01545f0a24e09fddf0)

1 files changed, 0 insertions, 78 deletions

diff --git a/python/google/protobuf/internal/message_listener.py b/python/google/protobuf/internal/message_listener.py
deleted file mode 100755
index 0fc255a7..00000000
--- a/python/google/protobuf/internal/message_listener.py
+++ /dev/null
@@ -1,78 +0,0 @@
-# Protocol Buffers - Google's data interchange format
-# Copyright 2008 Google Inc.  All rights reserved.
-# https://developers.google.com/protocol-buffers/
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions are
-# met:
-#
-#     * Redistributions of source code must retain the above copyright
-# notice, this list of conditions and the following disclaimer.
-#     * Redistributions in binary form must reproduce the above
-# copyright notice, this list of conditions and the following disclaimer
-# in the documentation and/or other materials provided with the
-# distribution.
-#     * Neither the name of Google Inc. nor the names of its
-# contributors may be used to endorse or promote products derived from
-# this software without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-"""Defines a listener interface for observing certain
-state transitions on Message objects.
-
-Also defines a null implementation of this interface.
-"""
-
-__author__ = 'robinson@google.com (Will Robinson)'
-
-
-class MessageListener(object):
-
-  """Listens for modifications made to a message.  Meant to be registered via
-  Message._SetListener().
-
-  Attributes:
-    dirty:  If True, then calling Modified() would be a no-op.  This can be
-            used to avoid these calls entirely in the common case.
-  """
-
-  def Modified(self):
-    """Called every time the message is modified in such a way that the parent
-    message may need to be updated.  This currently means either:
-    (a) The message was modified for the first time, so the parent message
-        should henceforth mark the message as present.
-    (b) The message's cached byte size became dirty -- i.e. the message was
-        modified for the first time after a previous call to ByteSize().
-        Therefore the parent should also mark its byte size as dirty.
-    Note that (a) implies (b), since new objects start out with a client cached
-    size (zero).  However, we document (a) explicitly because it is important.
-
-    Modified() will *only* be called in response to one of these two events --
-    not every time the sub-message is modified.
-
-    Note that if the listener's |dirty| attribute is true, then calling
-    Modified at the moment would be a no-op, so it can be skipped.  Performance-
-    sensitive callers should check this attribute directly before calling since
-    it will be true most of the time.
-    """
-
-    raise NotImplementedError
-
-
-class NullMessageListener(object):
-
-  """No-op MessageListener implementation."""
-
-  def Modified(self):
-    pass