Removed not used ha_drop_table()

This was done after changing call in sql_select.cc from
ha_drop_table() to drop_table(), like in 11.5

sql/handler.cc

@@ -553,13 +553,6 @@ static void update_discovery_counters(handlerton *hton, int val)
     engines_with_discover+= val;
 }
 
-int ha_drop_table(THD *thd, handlerton *hton, const char *path)
-{
-  if (ha_check_if_updates_are_ignored(thd, hton, "DROP"))
-    return 0;                                   // Simulate dropped
-  return hton->drop_table(hton, path);
-}
-
 static int hton_drop_table(handlerton *hton, const char *path)
 {
   char tmp_path[FN_REFLEN];
@@ -5142,27 +5135,6 @@ handler::ha_rename_table(const char *from, const char *to)
 }
 
 
-/**
-  Drop table in the engine: public interface.
-
-  @sa handler::drop_table()
-
-  The difference between this and delete_table() is that the table is open in
-  drop_table().
-*/
-
-void
-handler::ha_drop_table(const char *name)
-{
-  DBUG_ASSERT(m_lock_type == F_UNLCK);
-  if (check_if_updates_are_ignored("DROP"))
-    return;
-
-  mark_trx_read_write();
-  drop_table(name);
-}
-
-
 /**
    Structure used during force drop table.
 */

sql/handler.h

@@ -3437,7 +3437,6 @@ public:
   int ha_enable_indexes(key_map map, bool persist);
   int ha_discard_or_import_tablespace(my_bool discard);
   int ha_rename_table(const char *from, const char *to);
-  void ha_drop_table(const char *name);
 
   int ha_create(const char *name, TABLE *form, HA_CREATE_INFO *info);
 

sql/sql_select.cc

@@ -20564,7 +20564,7 @@ free_tmp_table(THD *thd, TABLE *entry)
       thd->tmp_tables_size+= (entry->file->stats.data_file_length +
                               entry->file->stats.index_file_length);
     }
-    entry->file->ha_drop_table(entry->s->path.str);
+    entry->file->drop_table(entry->s->path.str);
     delete entry->file;
     entry->file= NULL;
     entry->reset_created();