Time Picker 选中 23 时 focus 样式问题

[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

时间选择器，选完日期后，再去选择时间，当选中 23 时，当前选中状态样式存在问题

What is expected?

希望只有 23 时的数字被选中

What is actually happening?

23 时下方出现一个多余的区域

Environment	Info
antd	3.20.0
React	16.8.6
System	mac 10.14.4
Browser	75.0.3770.100

[zombieJ]

Duplicate of #17473