Problem:
=======
- innodb.log_file_name fails if it executes after
innodb.lock_insert_into_empty in few cases.
innodb.lock_insert_into_empty test case failed to
cleanup the table t2. Rollback of create..select fails
to remove the table when it fails to acquire the
innodb statistics table. This leads to rename table
in log_file_name test case fails.

Solution:
========
- Cleanup the table t2 explictly after resetting
innodb_lock_wait_timeout variable in
innodb.lock_insert_into_empty test case.