[jdk21u-dev] RFR: 8367017: Remove legacy checks from WrappedToolkitTest and convert from bash [v2]

[Sergey Bylokhov]

> Hi all,
> 
> This pull request contains a backport of commit [e1071797](https://github.com/openjdk/jdk/commit/e1071797a4f0ab1a6af29824a777a7800d729b0e) from the [openjdk/jdk](https://git.openjdk.org/jdk) repository.
> 
> The commit being backported was authored by Sergey Bylokhov on 16 Sep 2025 and was reviewed by Phil Race.
> 
> Thanks!

Sergey Bylokhov 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 two additional commits since the last revision:

 - Merge branch 'openjdk:master' into backport-mrserb-e1071797-master
 - Backport e1071797a4f0ab1a6af29824a777a7800d729b0e

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

Changes:
  - all: https://git.openjdk.org/jdk21u-dev/pull/2270/files
  - new: https://git.openjdk.org/jdk21u-dev/pull/2270/files/1e3d5674..aeabfa86

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=2270&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=2270&range=00-01

  Stats: 1400 lines in 38 files changed: 1232 ins; 83 del; 85 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/2270.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/2270/head:pull/2270

PR: https://git.openjdk.org/jdk21u-dev/pull/2270