Remove dead code for old rect_tx_ext

Change-Id: Ifa3b55d9c8022a66b6c0b1a15d3e8943cd7c69e6

tools/aom_entropy_optimizer.c

@@ -563,18 +563,7 @@ int main(int argc, const char **argv) {
       "static const aom_cdf_prob\n"
       "default_comp_bwdref_cdf[REF_CONTEXTS][BWD_REFS - 1][CDF_SIZE(2)]");
 
-/* Compound single ref inter mode */
-
-/* Transform size */
-#if CONFIG_RECT_TX_EXT
-  cts_each_dim[0] = 2;
-  optimize_entropy_table(&fc.quarter_tx_size[0], probsfile, 1, cts_each_dim,
-                         NULL, 1,
-                         "static const aom_prob default_quarter_tx_size_prob");
-  optimize_cdf_table(
-      &fc.quarter_tx_size[0], probsfile, 1, cts_each_dim,
-      "static const aom_cdf_prob default_quarter_tx_size_cdf[CDF_SIZE(2)]");
-#endif
+  /* Transform size */
   cts_each_dim[0] = TXFM_PARTITION_CONTEXTS;
   cts_each_dim[1] = 2;
   optimize_cdf_table(