RFR: 8358095: Cleanup tests with explicit locale provider set to only CLDR [v2]

[Justin Lu]

> Please review this PR which cleans up some i18n tests.
> 
> There are some i18n related tests that set the locale provider to CLDR (and only CLDR). Since JDK9, this is redundant and equivalent to the default. Thus, occurrences of "-Djava.locale.providers=CLDR" are just extra noise for these tests. 
> 
> As this change is trivial cleanup, bug IDs are not updated in this change.

Justin Lu has updated the pull request incrementally with one additional commit since the last revision:

  reflect review: strip othervm mode + cleanup

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Changes:
  - all: https://git.openjdk.org/jdk/pull/25532/files
  - new: https://git.openjdk.org/jdk/pull/25532/files/23cb3a2d..2eb1edd5

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=25532&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=25532&range=00-01

  Stats: 71 lines in 20 files changed: 0 ins; 51 del; 20 mod
  Patch: https://git.openjdk.org/jdk/pull/25532.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25532/head:pull/25532

PR: https://git.openjdk.org/jdk/pull/25532