Revert "ext4: Fix bug on in ext4_es_cache_extent as ext4_split_extent_at failed"

hulk inclusion
category: bugfix
bugzilla: 51854
CVE: NA

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This reverts commit 5446b76c34ed8875ba05a61fccfe838a98193791.

Signed-off-by: Ye Bin <yebin10@huawei.com>
Reviewed-by: Zhang Xiaoxu <zhangxiaoxu5@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>