diff --git a/assembly/src/main/resources/backport/NOTICE.txt b/assembly/src/main/resources/backport/NOTICE.txt
deleted file mode 100644
index c75b50ed6..000000000
--- a/assembly/src/main/resources/backport/NOTICE.txt
+++ /dev/null
@@ -1,7 +0,0 @@
-Apache Struts
-Copyright 2000-2011 The Apache Software Foundation
-
-This product includes software developed by
-The Apache Software Foundation (http://www.apache.org/).
-Retrotranslator (http://retrotranslator.sourceforge.net/).
-
diff --git a/assembly/src/main/resources/backport/RETROTRANSLATOR-LICENSE.txt b/assembly/src/main/resources/backport/RETROTRANSLATOR-LICENSE.txt
deleted file mode 100644
index c2a85598d..000000000
--- a/assembly/src/main/resources/backport/RETROTRANSLATOR-LICENSE.txt
+++ /dev/null
@@ -1,29 +0,0 @@
- Retrotranslator: a Java bytecode transformer that translates Java classes
- compiled with JDK 5.0 into classes that can be run on JVM 1.4.
-
- Copyright (c) 2005, 2006 Taras Puchko
- All rights reserved.
-
- Redistribution and use in source and binary forms, with or without
- modification, are permitted provided that the following conditions
- are met:
- 1. Redistributions of source code must retain the above copyright
-    notice, this list of conditions and the following disclaimer.
- 2. 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.
- 3. Neither the name of the copyright holders 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.