Decrement n_lock_table_exp in lock_table_remove_low()
  instead of lock_table_dequeue().
  Do not empty lock_heap in lock_release_tables_off_kernel().


innobase/lock/lock0lock.c:
  Decrement n_lock_table_exp in lock_table_remove_low()
  instead of lock_table_dequeue().
  Do not empty lock_heap in lock_release_tables_off_kernel().