Revert "vt: Fix character height handling with VT_RESIZEX"

hulk inclusion
category: bugfix
bugzilla: NA
CVE: NA

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This reverts commit cb173fc2
to avoid kabi broken.

Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Jian Cheng <cj.chengjian@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>