ICU-22531 Remove X from XLikelySubtags*

[FrankYFTang]

Checklist

• Required: Issue filed: https://unicode-org.atlassian.net/browse/ICU-22531
• Required: The PR title must be prefixed with a JIRA Issue number.
• Required: The PR description must include the link to the Jira Issue, for example by completing the URL in the first checklist item
• Required: Each commit message must be prefixed with a JIRA Issue number.
• Issue accepted (done by Technical Committee after discussion)
• Tests included, if applicable
• API docs and/or User Guide docs changed or added, if applicable

[FrankYFTang]

I think we should wait till 75, right?

[jira-pull-request-webhook]

Notice: the branch changed across the force-push!

• icu4c/source/common/loclikely.cpp is different
• icu4c/source/common/loclikelysubtags.cpp is different
• icu4j/main/core/src/main/java/com/ibm/icu/util/ULocale.java is different
• icu4j/main/core/src/test/java/com/ibm/icu/dev/test/util/LocaleMatcherTest.java is different

View Diff Across Force-Push

~ Your Friendly Jira-GitHub PR Checker Bot

[FrankYFTang]

@markusicu friendly ping

[jira-pull-request-webhook]

Notice: the branch changed across the force-push!

• icu4c/source/common/loclikelysubtags.cpp is different
• icu4j/main/core/src/main/java/com/ibm/icu/impl/locale/LikelySubtags.java is different

View Diff Across Force-Push

~ Your Friendly Jira-GitHub PR Checker Bot

[FrankYFTang]

@roubert @richgillam and @mihnita this is a very simple PR. I hope you can help to offload @markusicu time to help review it. All it does is to remove the X per what markus put on the bug report. Nothing more complicate than that.

[richgillam]

Looks good to me...

[mihnita]

LGTM, thank you

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I don't know why, but on this PR all I get is "Submit review"
I hope that is enough.
It's weird, because I usually get "Comment", "Approve" and "Request changes"
(I just approved PR 2700, and I had those 3 options)