RFR: 8343086: [BACKOUT] JDK-8295269 G1: Improve slow startup due to predictor initialization

[Thomas Schatzl]

Hi all,

  please review this revert of JDK-8295269 because it makes the runtime/cds/DeterministicCDSDump.java test fail due to differences in startup behavior.

This is a clean revert.

Testing: gha

Thanks,
  Thomas

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Commit messages:
 - 8343086

Changes: https://git.openjdk.org/jdk/pull/21718/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=21718&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8343086
  Stats: 7 lines in 2 files changed: 0 ins; 6 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/21718.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/21718/head:pull/21718

PR: https://git.openjdk.org/jdk/pull/21718