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diff --git a/src/lib/dl/ext/speex/lpc_bfin.h b/src/lib/dl/ext/speex/lpc_bfin.h
deleted file mode 100755
index 7310ffba..00000000
--- a/src/lib/dl/ext/speex/lpc_bfin.h
+++ /dev/null
@@ -1,131 +0,0 @@
-/* Copyright (C) 2005 Analog Devices */
-/**
-   @file lpc_bfin.h
-   @author Jean-Marc Valin 
-   @brief Functions for LPC (Linear Prediction Coefficients) analysis (Blackfin version)
-*/
-/*
-   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 Xiph.org Foundation 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 FOUNDATION 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.
-*/
-
-#define OVERRIDE_SPEEX_AUTOCORR
-void _spx_autocorr(
-const spx_word16_t *x,   /*  in: [0...n-1] samples x   */
-spx_word16_t       *ac,  /* out: [0...lag-1] ac values */
-int          lag, 
-int          n
-                  )
-{
-   spx_word32_t d;
-   const spx_word16_t *xs;
-   int i, j;
-   spx_word32_t ac0=1;
-   spx_word32_t ac32[11], *ac32top;
-   int shift, ac_shift;
-   ac32top = ac32+lag-1;
-   int lag_1, N_lag;
-   int nshift;
-   lag_1 = lag-1;
-   N_lag = n-lag_1;
-   for (j=0;j<n;j++)
-      ac0 = ADD32(ac0,SHR32(MULT16_16(x[j],x[j]),8));
-   ac0 = ADD32(ac0,n);
-   shift = 8;
-   while (shift && ac0<0x40000000)
-   {
-      shift--;
-      ac0 <<= 1;
-   }
-   ac_shift = 18;
-   while (ac_shift && ac0<0x40000000)
-   {
-      ac_shift--;
-      ac0 <<= 1;
-   }
-   
-   xs = x+lag-1;
-   nshift = -shift;
-   __asm__ __volatile__ 
-   (
-         "P2 = %0;\n\t"
-         "I0 = P2;\n\t" /* x in I0 */
-         "B0 = P2;\n\t" /* x in B0 */
-         "R0 = %3;\n\t" /* len in R0 */
-         "P3 = %3;\n\t" /* len in R0 */
-         "P4 = %4;\n\t" /* nb_pitch in R0 */
-         "R1 = R0 << 1;\n\t" /* number of bytes in x */
-         "L0 = R1;\n\t"
-         "P0 = %1;\n\t"
-         "P1 = %2;\n\t"
-         "B1 = P1;\n\t"
-         "R4 = %5;\n\t"
-         "L1 = 0;\n\t" /*Disable looping on I1*/
-
-         "r0 = [I0++];\n\t"
-         "R2 = 0;R3=0;"
-         "LOOP pitch%= LC0 = P4 >> 1;\n\t"
-         "LOOP_BEGIN pitch%=;\n\t"
-            "I1 = P0;\n\t"
-            "A1 = A0 = 0;\n\t"
-            "R1 = [I1++];\n\t"
-            "LOOP inner_prod%= LC1 = P3 >> 1;\n\t"
-            "LOOP_BEGIN inner_prod%=;\n\t"
-               "A1 += R0.L*R1.H, A0 += R0.L*R1.L (IS) || R1.L = W[I1++];\n\t"
-               "A1 += R0.H*R1.L, A0 += R0.H*R1.H (IS) || R1.H = W[I1++] || R0 = [I0++];\n\t"
-            "LOOP_END inner_prod%=;\n\t"
-            "A0 = ASHIFT A0 by R4.L;\n\t"
-            "A1 = ASHIFT A1 by R4.L;\n\t"
-   
-            "R2 = A0, R3 = A1;\n\t"
-            "[P1--] = R2;\n\t"
-            "[P1--] = R3;\n\t"
-            "P0 += 4;\n\t"
-         "LOOP_END pitch%=;\n\t"
-   : : "m" (xs), "m" (x), "m" (ac32top), "m" (N_lag), "m" (lag_1), "m" (nshift)
-   : "A0", "A1", "P0", "P1", "P2", "P3", "P4", "R0", "R1", "R2", "R3", "R4", "I0", "I1", "L0", "L1", "B0", "B1", "memory"
-   );
-   d=0;
-   for (j=0;j<n;j++)
-   {
-      d = ADD32(d,SHR32(MULT16_16(x[j],x[j]), shift));
-   }
-   ac32[0] = d;
-   
-   for (i=0;i<lag;i++)
-   {
-      d=0;
-      for (j=i;j<lag_1;j++)
-      {
-         d = ADD32(d,SHR32(MULT16_16(x[j],x[j-i]), shift));
-      }
-      if (i)
-         ac32[i] += d;
-      ac[i] = SHR32(ac32[i], ac_shift);
-   }
-}
-