RFR: 8321325: Remove unused Java_java_awt_MenuComponent_initIDs function

[Phil Race]

On Tue, 5 Dec 2023 08:30:44 GMT, Sergey Bylokhov <serb at openjdk.org> wrote:

> The Java_java_awt_MenuComponent_initIDs function is empty on Windows and macOS, on linux it has some code but it is unused.
> 
> This issue is similar to https://bugs.openjdk.org/browse/JDK-8318091

Marked as reviewed by prr (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/16965#pullrequestreview-1765764303