RFR: 8329549: Remove FORMAT64_MODIFIER [v3]

[Coleen Phillimore]

> This change removes FORMAT64_MODIFIER but adds another INT64_FORMAT_X_0_ macro to specify not having leading "0x" in the output.  Suggestions for better macro name welcome.
> GHA tested.

Coleen Phillimore has updated the pull request incrementally with one additional commit since the last revision:

  You're right, it's UINT64_FORMAT and moved the comment.

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Changes:
  - all: https://git.openjdk.org/jdk/pull/22918/files
  - new: https://git.openjdk.org/jdk/pull/22918/files/f2223d2c..6ac66379

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=22918&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=22918&range=01-02

  Stats: 7 lines in 3 files changed: 1 ins; 2 del; 4 mod
  Patch: https://git.openjdk.org/jdk/pull/22918.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/22918/head:pull/22918

PR: https://git.openjdk.org/jdk/pull/22918