[jdk21u-dev] RFR: 8328247: Remove redundant dir for tests converted from applet to main [v2]

[Satyen Subramaniam]

> Backporting JDK-8328247: Remove redundant dir for tests converted from applet to main. Renames three javax swing tests, as per change accepted by Oracle. 
> 
> Notably, this change also adapts JDK-8355333: Some Problem list entries point to non-existent / wrong files, to ensure that the renamed files are correctly excluded. I'm also removing the PrintToFileTest tests from the exclude list (since these only run on windows anyway). The `ScrollPaneEventType.java` test hasn't been backported yet (I'll follow up with another PR doing so and excluding as needed), so I've left that change out.
> 
> Ran GHA Sanity Checks, local Tier 1 and 2, and new tests directly. Patch is clean. Backporting for parity with Oracle.

Satyen Subramaniam has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains three commits:

 - Backport 32a597b36f994d6e720e0576ad110dac4a5304fe
 - Backport ece4124f25f676da9bf2d1b7fd8e4394dd7d31af
 - Backport e00355a036936c5290cf8d85fd3c4f743b0ad23a

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Changes: https://git.openjdk.org/jdk21u-dev/pull/2260/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=2260&range=01
  Stats: 521 lines in 9 files changed: 517 ins; 2 del; 2 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/2260.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/2260/head:pull/2260

PR: https://git.openjdk.org/jdk21u-dev/pull/2260