Remove unused and non-compiling vestigial g729 decoder

libavcodec/acelp_vectors.c

@@ -48,26 +48,6 @@ const uint8_t ff_fc_2pulses_9bits_track1_gray[16] =
   28, 26,
 };
 
-const uint8_t ff_fc_2pulses_9bits_track2_gray[32] =
-{
-  0,  2,
-  5,  4,
-  12, 10,
-  7,  9,
-  25, 24,
-  20, 22,
-  14, 15,
-  19, 17,
-  36, 31,
-  21, 26,
-  1,  6,
-  16, 11,
-  27, 29,
-  32, 30,
-  39, 37,
-  34, 35,
-};
-
 const uint8_t ff_fc_4pulses_8bits_tracks_13[16] =
 {
   0, 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75,