Issue 50599 - Remove db region files prior to db recovery
Bug Description: If the server crashes then the region files can become
corrupted and this prevents the server from starting.
Fix Description: If we encounter a disorderly shutdown, then remove
the region files so there is a clean slate to start
Also cleaned up function typo: slapi_disordely_shutdown
Reviewed by: firstyear & lkrispen (Thanks!!)