Revert "ext4: dio take shared inode lock when overwriting preallocated blocks"

hulk inclusion
category: perf
bugzilla: 188836, https://gitee.com/openeuler/kernel/issues/I7AYNZ



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

This reverts commit 5193a88e.
This commit may cause performance degradation, so it is being reverted
temporarily.

Signed-off-by: Baokun Li <libaokun1@huawei.com>