r23457: After Jeremy's ack:

r23457: After Jeremy's ack:

The attached patch removes a little race condition for
people with real kernel oplock support, and reduces some
code paths. It changes reply_unlink to open_file_ntcreate,
set_delete_on_close and close_file.

The race condition happens if we break the oplock in
can_delete via open_file_ntcreate, we close the file,
someone else gets a batch oplock and we try to unlink.

It reduces code paths by calling SMB_VFS_UNLINK in 2 fewer
places.
(This used to be commit 0342ce7057045a362134281bcc7030111276dea0)