Test fails because of non deterministric function: show grants for current_user()

mysql-test/r/read_only.result:
  Removing non deterministic test results from test.
mysql-test/t/read_only.test:
  Removing non deterministic test results from test.

mysql-test/r/read_only.result

@@ -60,11 +60,6 @@ grant all on mysqltest_db2.* to `mysqltest_u1`@`%`;
 create database mysqltest_db1;
 grant all on mysqltest_db1.* to `mysqltest_u1`@`%`;
 flush privileges;
-show grants for current_user();
-Grants for mysqltest_u1@%
-GRANT USAGE ON *.* TO 'mysqltest_u1'@'%'
-GRANT ALL PRIVILEGES ON `mysqltest_db2`.* TO 'mysqltest_u1'@'%'
-GRANT ALL PRIVILEGES ON `mysqltest_db1`.* TO 'mysqltest_u1'@'%'
 create database mysqltest_db2;
 ERROR HY000: The MySQL server is running with the --read-only option so it cannot execute this statement
 show databases like '%mysqltest_db2%';

mysql-test/t/read_only.test

@@ -137,7 +137,6 @@ grant all on mysqltest_db1.* to `mysqltest_u1`@`%`;
 flush privileges;
 connect (con_bug27440,127.0.0.1,mysqltest_u1,,test,$MASTER_MYPORT,);
 connection con_bug27440;
-show grants for current_user();
 --error ER_OPTION_PREVENTS_STATEMENT
 create database mysqltest_db2;
 show databases like '%mysqltest_db2%';