RFR: 8328742: Remove unused imports in manual tests

[Andy Goryachev]

On Thu, 21 Mar 2024 19:50:17 GMT, Kevin Rushforth <kcr at openjdk.org> wrote:

> Probably better to do this one separately.

will do separately.  

can I at least combine swing and web modules (there is only one file in swing that needs an update)?

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PR Review Comment: https://git.openjdk.org/jfx/pull/1418#discussion_r1534692541