RFR: 7903905: JOL: Simplify Lilliput headump-estimates

[Aleksey Shipilev]

Lilliput was shipped in JDK 24 as experimental option. Current heapdump-esitmates provides *two* estimates: one with array base improvements, and one without. The version of Lilliput in upstream does implement array base improvements unconditionally ([JDK-8139457](https://bugs.openjdk.org/browse/JDK-8139457)). Therefore, we do not need one of the estimates.

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Commit messages:
 - Capture array base improvements better
 - Basic Lilliput removals

Changes: https://git.openjdk.org/jol/pull/61/files
  Webrev: https://webrevs.openjdk.org/?repo=jol&pr=61&range=00
  Issue: https://bugs.openjdk.org/browse/CODETOOLS-7903905
  Stats: 148 lines in 10 files changed: 7 ins; 69 del; 72 mod
  Patch: https://git.openjdk.org/jol/pull/61.diff
  Fetch: git fetch https://git.openjdk.org/jol.git pull/61/head:pull/61

PR: https://git.openjdk.org/jol/pull/61