(cosmetics) Remove incorrect comment.

Originally committed as revision 14980 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/lsp.c

@@ -72,7 +72,7 @@ static void lsp2poly(int* f, const int16_t* lsp, int lp_half_order)
     {
         f[i] = f[i-2];
         for(j=i; j>1; j--)
-            f[j] -= MULL(f[j-1], lsp[2*i-2]) - f[j-2]; // (3.22) * (0.15) * 2 -> (3.22)
+            f[j] -= MULL(f[j-1], lsp[2*i-2]) - f[j-2];
 
         f[1] -= lsp[2*i-2] << 8;
     }