RFR: 8367157: Remove jrunscript tool [v2]

[Jaikiran Pai]

> Can I please get a review of this change which removes the `jrunscript` tool? This addresses https://bugs.openjdk.org/browse/JDK-8367157.
> 
> `jrunscript` is an experimental and unsupported tool which was deprecated for removal in Java 24. The commits in this PR remove the tool, its man pages and any references to it in the tests.
> 
> tier1 through tier8 have been run with this change in the CI and no related failures have been found. I'll file a CSR for this change and also add a release note.

Jaikiran Pai has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains five additional commits since the last revision:

 - merge latest from master branch
 - remove tests for jrunscript
 - remove jrunscript implementation
 - remove references from tests
 - remove man page for jrunscript

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/27163/files
  - new: https://git.openjdk.org/jdk/pull/27163/files/5458698f..8279d9b8

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=27163&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=27163&range=00-01

  Stats: 184646 lines in 2418 files changed: 144820 ins; 24642 del; 15184 mod
  Patch: https://git.openjdk.org/jdk/pull/27163.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/27163/head:pull/27163

PR: https://git.openjdk.org/jdk/pull/27163