block: wbt: Remove unnecessary invoking of wbt_update_limits in wbt_init

stable inclusion
from stable-v5.10.152
commit 392536023da18086d57565e716ed50193869b8e7
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I60HVY
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=392536023da18086d57565e716ed50193869b8e7



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

commit 5a20d073 upstream.

It's unnecessary to call wbt_update_limits explicitly within wbt_init,
because it will be called in the following function wbt_queue_depth_changed.

Signed-off-by: Lei Chen <lennychen@tencent.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>