diff --git a/LICENSE.txt b/LICENSE.txt
index 6650069ab..397ff3927 100644
--- a/LICENSE.txt
+++ b/LICENSE.txt
@@ -31,10 +31,7 @@ licenses/simile.LICENSE.txt (BSD family)
 
 licenses/arithcode.LICENSE.txt (BSD family)
     arithcode
-   
-licenses/protobuf.LICENSE.txt (BSD family) 
-    protobuf
-    
+       
 licenses/icu4j.LICENSE.txt (MIT family)
     icu4j
    
diff --git a/lib-src/protobuf-2.3.0-sources.jar b/lib-src/protobuf-2.3.0-sources.jar
deleted file mode 100644
index 1bddf502b..000000000
Binary files a/lib-src/protobuf-2.3.0-sources.jar and /dev/null differ
diff --git a/lib/protobuf-2.3.0.jar b/lib/protobuf-2.3.0.jar
deleted file mode 100644
index 800b4fe40..000000000
Binary files a/lib/protobuf-2.3.0.jar and /dev/null differ
diff --git a/licenses/protobuf.LICENSE.txt b/licenses/protobuf.LICENSE.txt
deleted file mode 100644
index 705db579c..000000000
--- a/licenses/protobuf.LICENSE.txt
+++ /dev/null
@@ -1,33 +0,0 @@
-Copyright 2008, Google Inc.
-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 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.
-
-Code generated by the Protocol Buffer compiler is owned by the owner
-of the input file used when generating it.  This code is not
-standalone and requires a support library to be linked with it.  This
-support library is itself covered by the above license.