RFR: 8327239: Obsolete unused GCLockerEdenExpansionPercent product option

[Thomas Schatzl]

Hi all,

  please review this change to obsolete the unused flag GCLockerEdenExpansionPercent. Please also review the CSR.

Testing: local compilation, grepping sources for occurrences

Thanks,
  Thomas8327239-obsolete-gclockeredenexpansionpercent

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Commit messages:
 - 8327239

Changes: https://git.openjdk.org/jdk/pull/18117/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=18117&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8327239
  Stats: 6 lines in 2 files changed: 1 ins; 5 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/18117.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/18117/head:pull/18117

PR: https://git.openjdk.org/jdk/pull/18117