Revert "fs: check FMODE_LSEEK to control internal pipe splicing"

stable inclusion
from stable-v5.10.149
commit a07708a843558658de1cdff63ae653e6dcb8c81a
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I6D0WY

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=a07708a843558658de1cdff63ae653e6dcb8c81a



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

This reverts commit fd0a6e99b61e6c08fa5cf585d54fd956f70c73a6.

Which was upstream commit 97ef77c5.

The commit is missing dependencies and breaks NFS tests, remove it for
now.

Reported-by: Saeed Mirzamohammadi <saeed.mirzamohammadi@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Jialin Zhang <zhangjialin11@huawei.com>
Reviewed-by: Zheng Zengkai <zhengzengkai@huawei.com>