aacsbr: remove unused variables

libavcodec/aacsbr.c

@@ -1578,10 +1578,6 @@ static void sbr_hf_assemble(float Y1[38][64][2],
         0.11516383427084,
         0.03183050093751,
     };
-    static const int8_t phi[2][4] = {
-        {  1,  0, -1,  0}, // real
-        {  0,  1,  0, -1}, // imaginary
-    };
     float (*g_temp)[48] = ch_data->g_temp, (*q_temp)[48] = ch_data->q_temp;
     int indexnoise = ch_data->f_indexnoise;
     int indexsine  = ch_data->f_indexsine;
@@ -1605,7 +1601,6 @@ static void sbr_hf_assemble(float Y1[38][64][2],
 
     for (e = 0; e < ch_data->bs_num_env; e++) {
         for (i = 2 * ch_data->t_env[e]; i < 2 * ch_data->t_env[e + 1]; i++) {
-            int phi_sign = (1 - 2*(kx & 1));
             LOCAL_ALIGNED_16(float, g_filt_tab, [48]);
             LOCAL_ALIGNED_16(float, q_filt_tab, [48]);
             float *g_filt, *q_filt;