RFR: 8362533: Tests sun/management/jmxremote/bootstrap/* duplicate VM flags

[Lei Zhu]

Hi all,

`ProcessTools.createTestJavaProcessBuilder(String... command)` will call `jdk.test.lib.Utils#getTestJavaOpts`, so remove the duplicate vm flags. Trivial fix.

Thanks!

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Commit messages:
 - 8362533: Tests sun/management/jmxremote/bootstrap/* duplicate VM flags

Changes: https://git.openjdk.org/jdk/pull/26555/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=26555&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8362533
  Stats: 12 lines in 3 files changed: 0 ins; 8 del; 4 mod
  Patch: https://git.openjdk.org/jdk/pull/26555.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/26555/head:pull/26555

PR: https://git.openjdk.org/jdk/pull/26555