Revert "cifs: Fix slab-out-of-bounds in send_set_info() on SMB2 ACE setting"

Revert "cifs: Fix slab-out-of-bounds in send_set_info() on SMB2 ACE setting"

This reverts commit 748144f35514aef14c4fdef5bcaa0db99cb9367a which is
commit f46ecbd97f508e68a7806291a139499794874f3d upstream.

Philip reports:
	seems adding "cifs: Fix slab-out-of-bounds in send_set_info() on SMB2
	ACE setting" (commit 748144f) [1] created a regression within linux
	v4.14 kernel series. Writing to a mounted cifs either freezes on writing
	or crashes the PC. A more detailed explanation you may find in our
	forums [2]. Reverting the patch, seems to "fix" it. Thoughts?

	[2] https://forum.manjaro.org/t/53250

Reported-by: Philip Müller <philm@manjaro.org>
Cc: Jianhong Yin <jiyin@redhat.com>
Cc: Stefano Brivio <sbrivio@redhat.com>
Cc: Aurelien Aptel <aaptel@suse.com>
Cc: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>