RFR: 8374662: Remove unused type check functions from javaClasses.hpp [v2]

[Ioi Lam]

> Please review this trivial patch.
> 
> These functions are never used and should be removed.

Ioi Lam 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 two additional commits since the last revision:

 - Merge branch 'master' into 8374662-remove-unused-type-check-functions-from-javaClasses-hpp
 - 8374662: Remove unused type check functions from javaClasses.hpp

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/29077/files
  - new: https://git.openjdk.org/jdk/pull/29077/files/bbf4858d..4efcfcac

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=29077&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=29077&range=00-01

  Stats: 16474 lines in 468 files changed: 3268 ins; 1863 del; 11343 mod
  Patch: https://git.openjdk.org/jdk/pull/29077.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/29077/head:pull/29077

PR: https://git.openjdk.org/jdk/pull/29077