Updated misc_session_status.test to not fail if select does not fail

The test with memory restrictions randomly works or fails in buildbot
depending on server configurations. On my machine the original test
worked.
As the test was there to just check if the server crashes when run with
small memory configurations, I disabled testing if the query would fail
or not. The test still has its original purpose.

Discussed with: Sergei Golubchik <serg@mariadb.org>

mysql-test/suite/perfschema/r/misc_session_status.result

@@ -7,7 +7,6 @@ select * from performance_schema.session_status limit 0;
 VARIABLE_NAME	VARIABLE_VALUE
 set max_session_mem_used=32768;
 select * from performance_schema.session_status;
-ERROR HY000: The MariaDB server is running with the --max-session-mem-used=32768 option so it cannot execute this statement
 set global innodb_io_capacity_max=100;
 Warnings:
 Warning	1210	Setting innodb_io_capacity_max 100 lower than innodb_io_capacity 200.

mysql-test/suite/perfschema/t/misc_session_status.test

@@ -10,9 +10,11 @@ set @old_innodb_io_capacity=@@global.innodb_io_capacity;
 set @old_innodb_io_capacity_max=@@global.innodb_io_capacity_max;
 select * from performance_schema.session_status limit 0; # discover the table
 set max_session_mem_used=32768;
---error ER_OPTION_PREVENTS_STATEMENT
+--disable_result_log
+--error 0,ER_OPTION_PREVENTS_STATEMENT
 # this used to crash, when OOM happened under LOCK_thd_kill
 select * from performance_schema.session_status;
+--enable_result_log
 # this used to cause mutex lock order violation when OOM happened under LOCK_global_system_variables
 set global innodb_io_capacity_max=100;
 set max_session_mem_used=default;