RFR: JDK-8285730: unify _WIN32_WINNT settings [v4]

Thu May 12 11:00:49 UTC 2022

On Thu, 12 May 2022 04:25:24 GMT, David Holmes <dholmes at openjdk.org> wrote:

>> This change seem to have made this group of declarations obsolete: 
>> `src/java.desktop/windows/native/libawt/windows/awt_Toolkit.h:157` (follow the [link](
>> https://github.com/openjdk/jdk/blob/89de756ffbefac452c7df559e2a4eb50bf71368b/src/java.desktop/windows/native/libawt/windows/awt_Toolkit.h#L157)). Does anyone have plans to drop those? Have any bugs been filed for that? If not, I'll attend to that myself.
>
> @mkartashev  all references to WINVER in the AWT code seem obsolete. Possibly most of the IS_WINxxx usages could also be replaced.

@dholmes-ora @MBaesken Thank you! Filed [JDK-8286634](https://bugs.openjdk.java.net/browse/JDK-8286634).

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PR: https://git.openjdk.java.net/jdk/pull/8428