RFR: 8333566: Remove unused methods

[Cesar Soares Lucas]

Please, consider this patch to remove unused methods from the code base. To the best of my knowledge, these methods are only defined but never used.

Here is a list with names of delete methods: https://gist.github.com/JohnTortugo/fccc29781a1b584c03162aa4e160e874

Tested with Linux x86_64 tier1-4, GHA, and only cross building to other platforms.

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Commit messages:
 - Temove trailing whitespace.
 - Removing unused methods in aarch64
 - Merge remote-tracking branch 'origin/main' into unused-methods
 - Merge remote-tracking branch 'origin/main' into unused-methods
 - Remove defined but unused methods.

Changes: https://git.openjdk.org/jdk/pull/19550/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=19550&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8333566
  Stats: 1398 lines in 139 files changed: 1 ins; 1290 del; 107 mod
  Patch: https://git.openjdk.org/jdk/pull/19550.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/19550/head:pull/19550

PR: https://git.openjdk.org/jdk/pull/19550