vfs_fruit: remove internal directory cleanup logic

vfs_fruit: remove internal directory cleanup logic

Currently fruit does a cleanup run on a directory when it is being removed: it
lists the directory and does an explicit unlink on any found file that is a
genuine AppleDouble file.

This is not realy needed: the ._ AppleDouble sidecar files are either vetoed by
default, so cleanup can be turned on by the built-in "delete veto files"
options. Or, if the user sets "fruit:veto_appledouble", the client will see the
file in a directory list as ordinary files, so the client is responsible for
deleting them first before removing the parent directory.

tl;dr

One caller of SMB_VFS_OPENDIR() less. :)

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>