Cleanup: Remove dead code

sql/sql_parse.cc

@@ -2641,31 +2641,10 @@ mysql_execute_command(THD *thd)
           lex->sql_command == SQLCOM_SELECT) &&
         !wsrep_is_show_query(lex->sql_command))
     {
-#if DIRTY_HACK
-      /* Dirty hack for lp:1002714 - trying to recognize mysqldump connection
-       * and allow it to continue. Actuall mysqldump_magic_str may be longer
-       * and is obviously version dependent and may be issued by any client
-       * connection after which connection becomes non-replicating. */
-      static char const mysqldump_magic_str[]=
-"SELECT LOGFILE_GROUP_NAME, FILE_NAME, TOTAL_EXTENTS, INITIAL_SIZE, ENGINE, EXTRA FROM INFORMATION_SCHEMA.FILES WHERE FILE_TYPE = 'UNDO LOG' AND FILE_NAME IS NOT NULL";
-      static const size_t mysqldump_magic_str_len= sizeof(mysqldump_magic_str) -1;
-      if (SQLCOM_SELECT != lex->sql_command ||
-          thd->query_length() < mysqldump_magic_str_len ||
-          strncmp(thd->query(), mysqldump_magic_str, mysqldump_magic_str_len))
-      {
-#endif /* DIRTY_HACK */
       my_message(ER_UNKNOWN_COM_ERROR,
                  "WSREP has not yet prepared node for application use",
                  MYF(0));
       goto error;
-#if DIRTY_HACK
-      }
-      else
-      {
-        /* mysqldump connection, allow all further queries to pass */
-        thd->variables.wsrep_on= FALSE;
-      }
-#endif /* DIRTY_HACK */
     }
   }
 #endif /* WITH_WSREP */