RFR: 8315488: SA ciReplay support is no longer up-to-date with hotspot ciReplay support

[Coleen Phillimore]

This change removes the ci, c1 and c2 compiler code from the serviceability agent.  The ciReplay functionality is supported inside the jvm and this duplicated functionality in SA had bit rotted so is removed.
Tested with tier1-4.

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Commit messages:
 - Remove unused declarations in vmStructs.
 - Remove doc
 - Remove the test.
 - more unused code.
 - Remove SA compiler replay facility that nobody uses.

Changes: https://git.openjdk.org/jdk/pull/23782/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=23782&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8315488
  Stats: 5529 lines in 69 files changed: 1 ins; 5521 del; 7 mod
  Patch: https://git.openjdk.org/jdk/pull/23782.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/23782/head:pull/23782

PR: https://git.openjdk.org/jdk/pull/23782