RFR: 8354228: Parallel: Set correct minimum of InitialSurvivorRatio

Wed Apr 9 17:38:54 UTC 2025

Updating the lower bound of InitialSurvivorRatio to match MinSurvivorRatio. The two removed test cases set conflicting Min and Intial SurvivorRatio, which, IMO, is an incorrect configuration, so I removed them.

Test: tier1-7

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Commit messages:
 - pgc-min-initial-fix

Changes: https://git.openjdk.org/jdk/pull/24556/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=24556&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8354228
  Stats: 15 lines in 3 files changed: 12 ins; 2 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/24556.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/24556/head:pull/24556

PR: https://git.openjdk.org/jdk/pull/24556