Remove directories in mojo/public/third_party that just mirrored third_party.

mojo/public/third_party/ply/license.patch

-diff --git a/third_party/ply/__init__.py b/third_party/ply/__init__.py
-index 853a985..f3da03e 100644
---- a/third_party/ply/__init__.py
-+++ b/third_party/ply/__init__.py
-@@ -1,4 +1,36 @@
- # PLY package
- # Author: David Beazley (dave@dabeaz.com)
-+# -----------------------------------------------------------------------------
-+# ply: yacc.py
-+#
-+# Copyright (C) 2001-2011,
-+# David M. Beazley (Dabeaz LLC)
-+# All rights reserved.
-+#
-+# 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 the David Beazley or Dabeaz LLC 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.
-+# -----------------------------------------------------------------------------
- 
- __all__ = ['lex','yacc']