RFR: 8328820: Remove unused imports in javafx.swing

[Ajit Ghaisas]

On Fri, 22 Mar 2024 16:04:58 GMT, Andy Goryachev <angorya at openjdk.org> wrote:

> Removed unused imports in javafx.swing (1 change) module.
> 
> See the discussion in [JDK-8289379](https://bugs.openjdk.org/browse/JDK-8289379)

This cleanup Looks good.

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Marked as reviewed by aghaisas (Reviewer).

PR Review: https://git.openjdk.org/jfx/pull/1428#pullrequestreview-1970981426