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diff --git a/gr-digital/include/digital/additive_scrambler_bb.h b/gr-digital/include/digital/additive_scrambler_bb.h
deleted file mode 100644
index 9f0493b756..0000000000
--- a/gr-digital/include/digital/additive_scrambler_bb.h
+++ /dev/null
@@ -1,74 +0,0 @@
-/* -*- c++ -*- */
-/*
- * Copyright 2008,2010,2012 Free Software Foundation, Inc.
- *
- * This file is part of GNU Radio
- *
- * GNU Radio is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 3, or (at your option)
- * any later version.
- *
- * GNU Radio is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with GNU Radio; see the file COPYING.  If not, write to
- * the Free Software Foundation, Inc., 51 Franklin Street,
- * Boston, MA 02110-1301, USA.
- */
-
-#ifndef INCLUDED_DIGITAL_ADDITIVE_SCRAMBLER_BB_H
-#define INCLUDED_DIGITAL_ADDITIVE_SCRAMBLER_BB_H
-
-#include <digital/api.h>
-#include <gnuradio/sync_block.h>
-
-namespace gr {
-  namespace digital {
-    
-    /*!
-     * \ingroup coding_blk
-     *
-     * \brief
-     * Scramble an input stream using an LFSR.
-     *
-     * \details
-     * This block works on the LSB only of the input data stream,
-     * i.e., on an "unpacked binary" stream, and produces the same
-     * format on its output.
-     *
-     * The scrambler works by XORing the incoming bit stream by the
-     * output of the LFSR. Optionally, after 'count' bits have been
-     * processed, the shift register is reset to the seed value.
-     * This allows processing fixed length vectors of samples.
-     */
-    class DIGITAL_API additive_scrambler_bb : virtual public sync_block
-    {
-    public:
-      // gr::digital::additive_scrambler_bb::sptr
-      typedef boost::shared_ptr<additive_scrambler_bb> sptr;
-
-      /*!
-       * \brief Create additive scrambler.
-       *
-       * \param mask   Polynomial mask for LFSR
-       * \param seed   Initial shift register contents
-       * \param len    Shift register length
-       * \param count  Number of bits after which shift register is reset, 0=never
-       *
-       */
-      static sptr make(int mask, int seed, int len, int count=0);
-
-      virtual int mask() const = 0;
-      virtual int seed() const = 0;
-      virtual int len() const = 0;
-      virtual int count() const = 0;
-    };
-
-  } /* namespace digital */
-} /* namespace gr */
-
-#endif /* INCLUDED_DIGITAL_ADDITIVE_SCRAMBLER_BB_H */