RFR: 8247957: remove doclint support for HTML 4 [v3]

[Yoshiki Sato]

On Thu, 17 Dec 2020 04:52:48 GMT, Jonathan Gibbons <jjg at openjdk.org> wrote:

>> src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclint/resources/doclint.properties line 36:
>> 
>>> 34: dc.attr.img.border.not.number = attribute "border" for img is not a number
>>> 35: dc.attr.table.border.not.valid = attribute "border" for table only accepts "" or "1", use CSS instead: {0}
>>> 36: dc.attr.table.border.not.number = attribute "border" for table is not a number
>> 
>> suggest dropping "use CSS instead"
>
> The wording of `attribute "border" for img is not a number` seems strange.
> Suggest something like `invalid value for attribute "border": {0}`

Ok, I will fix that.

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PR: https://git.openjdk.java.net/jdk/pull/893