Revert "ext4: fix use-after-free in ext4_xattr_set_entry"

stable inclusion
from stable-v5.10.179
commit 9400206d9d5eebc0317da4151364ade32d28944f
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I8C809

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=9400206d9d5eebc0317da4151364ade32d28944f

--------------------------------

This reverts commit bb8592efcf8ef2f62947745d3182ea05b5256a15 which is
commit 67d7d8ad upstream.

The order in which patches are queued to stable matters. This patch
has a logical dependency on commit 310c097c
upstream, and failing to queue the latter results in a null-ptr-deref
reported at the Link below.

In order to avoid conflicts on stable, revert the commit just so that we
can queue its prerequisite patch first and then queue the same after.

Link: https://syzkaller.appspot.com/bug?extid=d5ebf56f3b1268136afd


Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: sanglipeng <sanglipeng1@jd.com>