RFR: JDK-8325529: Remove unused imports from `ModuleGenerator` test file.

Thu Feb 8 23:56:12 UTC 2024

Please review an automated update to fix the imports in the test `sampleapi` package.

While only one file was affected in a sibling PR, it seems that all the files in the package had disorganized imports.  While low priority, fixing them here will stop the issue showing up in other PRs.

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Commit messages:
 - JDK-8325529: Remove unused imports from `ModuleGenerator` test file.

Changes: https://git.openjdk.org/jdk/pull/17782/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=17782&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8325529
  Stats: 110 lines in 6 files changed: 56 ins; 40 del; 14 mod
  Patch: https://git.openjdk.org/jdk/pull/17782.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/17782/head:pull/17782

PR: https://git.openjdk.org/jdk/pull/17782