Fixed for failures in buildbot: Replication

1. remove unnecessary rpl-tokudb combination file.
2. fix rpl_ignore_table to cleanup properly (not leave test
   grants in memory)
3. check_temp_dir() is supposed to set the error in stmt_da - do
   it even when called multiple times, this fixes a crash when
   rpl.rpl_slave_load_tmpdir_not_exist is run twice.

mysql-test/suite/rpl/r/rpl_ignore_table.result

@@ -142,4 +142,5 @@ HEX(word)
 SELECT * FROM tmptbl504451f4258$1;
 ERROR 42S02: Table 'test.tmptbl504451f4258$1' doesn't exist
 DROP TABLE t5;
+flush privileges;
 include/rpl_end.inc

mysql-test/suite/rpl/t/rpl_ignore_table.test

@@ -1,6 +1,6 @@
-source include/master-slave.inc;
 let collation=utf8_unicode_ci;
---source include/have_collation.inc
+source include/have_collation.inc;
+source include/master-slave.inc;
 
 call mtr.add_suppression("Can't find record in 't.'");
 call mtr.add_suppression("Can't find record in 'user'");
@@ -180,6 +180,7 @@ SELECT HEX(word) FROM t5;
 SELECT * FROM tmptbl504451f4258$1;
 connection master;
 DROP TABLE t5;
+flush privileges;
 sync_slave_with_master;
 
 --source include/rpl_end.inc

sql/slave.cc

@@ -4292,7 +4292,8 @@ int check_temp_dir(char* tmp_file)
   mysql_mutex_lock(&LOCK_thread_count);
   if (check_temp_dir_run)
   {
-    result= check_temp_dir_result;
+    if ((result= check_temp_dir_result))
+      my_message(result, tmp_file, MYF(0));
     goto end;
   }
   check_temp_dir_run= 1;
@@ -4327,7 +4328,6 @@ int check_temp_dir(char* tmp_file)
   mysql_file_delete(key_file_misc, tmp_file, MYF(0));
 
 end:
-  check_temp_dir_result= result;
   mysql_mutex_unlock(&LOCK_thread_count);
   DBUG_RETURN(result);
 }
@@ -4603,11 +4603,14 @@ log '%s' at position %s, relay log '%s' position: %s%s", RPL_LOG_NAME,
 
   if (check_temp_dir(rli->slave_patternload_file))
   {
+    check_temp_dir_result= thd->get_stmt_da()->sql_errno();
     rli->report(ERROR_LEVEL, thd->get_stmt_da()->sql_errno(), NULL,
                 "Unable to use slave's temporary directory %s - %s", 
                 slave_load_tmpdir, thd->get_stmt_da()->message());
     goto err;
   }
+  else
+    check_temp_dir_result= 0;
 
   /* Load the set of seen GTIDs, if we did not already. */
   if (rpl_load_gtid_slave_state(thd))