Don't recheck it since xattr_permission() already
checks CAP_SYS_ADMIN capability.
Just follow 5d3ce4f70172 ("f2fs: avoid duplicated permission check for "trusted." xattrs")
Reported-by: Hongyu Jin <hongyu.jin@xxxxxxxxxx>
[ Gao Xiang: since it could cause some complex Android overlay
permission issue as well on android-5.4+, so it'd be better to
backport to 5.4+ rather than pure cleanup on mainline. ]
Cc: <stable@xxxxxxxxxxxxxxx> # 5.4+
Signed-off-by: Gao Xiang <hsiangkao@xxxxxxxxxx>