Remove redundant config flags from get_entropy_context

The rectangular transform syntax is by default supported, hence
no need to put it under the experimental flag. This does not change
the coding statistics.

Change-Id: I3a147503d973a03400f8a86e11f07c7d754e6234

av1/common/entropy.c

diff --git a/av1/common/entropy.c b/av1/common/entropy.c
index 7e66e93..80eaccc 100644
--- a/av1/common/entropy.c
+++ b/av1/common/entropy.c
@@ -64,11 +64,9 @@
 #endif
   { 1, 2, 3, 4, 3, 16 - 13, 0 },   { 1, 2, 3, 4, 11, 64 - 21, 0 },
   { 1, 2, 3, 4, 11, 256 - 21, 0 }, { 1, 2, 3, 4, 11, 1024 - 21, 0 },
-#if CONFIG_EXT_TX
   { 1, 2, 3, 4, 8, 32 - 18, 0 },   { 1, 2, 3, 4, 8, 32 - 18, 0 },
   { 1, 2, 3, 4, 11, 128 - 21, 0 }, { 1, 2, 3, 4, 11, 128 - 21, 0 },
   { 1, 2, 3, 4, 11, 512 - 21, 0 }, { 1, 2, 3, 4, 11, 512 - 21, 0 },
-#endif  // CONFIG_EXT_TX
 };
 
 const uint16_t band_cum_count_table[TX_SIZES_ALL][8] = {
@@ -77,11 +75,9 @@
 #endif
   { 0, 1, 3, 6, 10, 13, 16, 0 },  { 0, 1, 3, 6, 10, 21, 64, 0 },
   { 0, 1, 3, 6, 10, 21, 256, 0 }, { 0, 1, 3, 6, 10, 21, 1024, 0 },
-#if CONFIG_EXT_TX
   { 0, 1, 3, 6, 10, 18, 32, 0 },  { 0, 1, 3, 6, 10, 18, 32, 0 },
   { 0, 1, 3, 6, 10, 21, 128, 0 }, { 0, 1, 3, 6, 10, 21, 128, 0 },
   { 0, 1, 3, 6, 10, 21, 512, 0 }, { 0, 1, 3, 6, 10, 21, 512, 0 },
-#endif  // CONFIG_EXT_TX
 };
 
 const uint8_t av1_coefband_trans_8x8plus[1024] = {

av1/common/entropy.h

diff --git a/av1/common/entropy.h b/av1/common/entropy.h
index 423b35c..55ed8d4 100644
--- a/av1/common/entropy.h
+++ b/av1/common/entropy.h
@@ -222,7 +222,6 @@
       above_ec = a[0] != 0;
       left_ec = l[0] != 0;
       break;
-#if CONFIG_EXT_TX
     case TX_4X8:
       above_ec = a[0] != 0;
       left_ec = !!*(const uint16_t *)l;
@@ -247,7 +246,6 @@
       above_ec = !!*(const uint64_t *)a;
       left_ec = !!*(const uint32_t *)l;
       break;
-#endif  // CONFIG_EXT_TX
     case TX_8X8:
       above_ec = !!*(const uint16_t *)a;
       left_ec = !!*(const uint16_t *)l;

av1/encoder/rd.c

diff --git a/av1/encoder/rd.c b/av1/encoder/rd.c
index f5af485..fe6c720 100644
--- a/av1/encoder/rd.c
+++ b/av1/encoder/rd.c
@@ -571,7 +571,6 @@
       for (i = 0; i < num_4x4_h; i += 8)
         t_left[i] = !!*(const uint64_t *)&left[i];
       break;
-#if CONFIG_EXT_TX && CONFIG_RECT_TX
     case TX_4X8:
       memcpy(t_above, above, sizeof(ENTROPY_CONTEXT) * num_4x4_w);
       for (i = 0; i < num_4x4_h; i += 2)
@@ -606,7 +605,6 @@
       for (i = 0; i < num_4x4_h; i += 4)
         t_left[i] = !!*(const uint32_t *)&left[i];
       break;
-#endif  // CONFIG_EXT_TX && CONFIG_RECT_TX
     default: assert(0 && "Invalid transform size."); break;
   }
 }