RFR: 8323809: Serial: Refactor card table verification [v2]

[Albert Mingkun Yang]

> Simple refactoring and remove much outdated comments.

Albert Mingkun Yang has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains one additional commit since the last revision:

  s1-card-verify

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/17447/files
  - new: https://git.openjdk.org/jdk/pull/17447/files/04f2ee1b..f8342bfc

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=17447&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=17447&range=00-01

  Stats: 7127 lines in 240 files changed: 4386 ins; 1587 del; 1154 mod
  Patch: https://git.openjdk.org/jdk/pull/17447.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/17447/head:pull/17447

PR: https://git.openjdk.org/jdk/pull/17447