fs/ntfs3: Delete duplicate condition in ntfs_read_mft()

mainline inclusion
from mainline-v6.2-rc1
commit 65801516
category: bugfix
bugzilla: 188526, https://gitee.com/src-openeuler/kernel/issues/I71SYO
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=658015167a8432b88f5d032e9d85d8fd50e5bf2c



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

There were two patches which addressed the same bug and added the same
condition:

commit 6db62086 ("fs/ntfs3: Validate data run offset")
commit 887bfc54 ("fs/ntfs3: Fix slab-out-of-bounds read in run_unpack")

Delete one condition.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
Signed-off-by: ZhaoLong Wang <wangzhaolong1@huawei.com>
Reviewed-by: Xiu Jianfeng <xiujianfeng@huawei.com>
Reviewed-by: Zhang Yi <yi.zhang@huawei.com>
Signed-off-by: Jialin Zhang <zhangjialin11@huawei.com>