RFR: 8328739: Remove unused imports in javafx.graphics

[Andy Goryachev]

Using Eclipse IDE to remove unused imports in **javafx.graphics** and update the copyright year to 2024. Using wildcard for more than 10 static imports.

**PROBLEM**
The code in `graphics/build/gensrc/jsl-decora/` is generated and cannot be fixed.
This means this warning **must be suppressed** in IDEs until the generator script is changed not to emit unused imports.

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This is a trivial change, 1 reviewer is probably enough.

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Commit messages:
 - 8328739: Remove unused imports in javafx.graphics

Changes: https://git.openjdk.org/jfx/pull/1417/files
  Webrev: https://webrevs.openjdk.org/?repo=jfx&pr=1417&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8328739
  Stats: 36 lines in 6 files changed: 7 ins; 20 del; 9 mod
  Patch: https://git.openjdk.org/jfx/pull/1417.diff
  Fetch: git fetch https://git.openjdk.org/jfx.git pull/1417/head:pull/1417

PR: https://git.openjdk.org/jfx/pull/1417