remove redundant boilerplate code from NOTICE files

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@756745 13f79535-47bb-0310-9956-ffa450edef68

NOTICE

@@ -1,9 +1,3 @@
-   =========================================================================
-   ==  NOTICE file corresponding to the section 4 d of                    ==
-   ==  the Apache License, Version 2.0,                                   ==
-   ==  in this case for the Apache Ant distribution.                      ==
-   =========================================================================
-
    Apache Ant
    Copyright 1999-2009 The Apache Software Foundation
 
@@ -18,17 +12,6 @@
    Graphics Corp that has been kindly donated to the Apache Software
    Foundation.
 
-   =========================================================================
-   ==  NOTICE file corresponding to section 4(d) of the Apache License,   ==
-   ==  Version 2.0, in this case for the Apache Xerces Java distribution. ==
-   =========================================================================
-
-   Apache Xerces Java
-   Copyright 1999-2008 The Apache Software Foundation
-
-   This product includes software developed at
-   The Apache Software Foundation (http://www.apache.org/).
-
    Portions of this software were originally based on the following:
      - software copyright (c) 1999, IBM Corporation., http://www.ibm.com.
      - software copyright (c) 1999, Sun Microsystems., http://www.sun.com.