当在 DatePicker 中使用 TimePicker 的时间选择能力时，23 时的 focus 样式依然存在问题

[xiabaiyang]

• I have searched the issues of this repository and believe that this is not a duplicate.

Reproduction link

https://ant.design/components/date-picker-cn/

Steps to reproduce

先选日期，再选时间，定位到 23 时，focus 样式问题依然存在

What is expected?

选中 23 时，数字左下方不出现竖线

What is actually happening?

选中 23 时，数字左下方出现异常竖线

Environment	Info
antd	3.20.0
React	16.8.6
System	mac 10.14.4
Browser	chrome 75.0.3770.100

[afc163]

Fixed in #17447, will released in this weekend.