[jdk21u-dev] RFR: 8364660: ClassVerifier::ends_in_athrow() should be removed

[Goetz Lindenmaier]

I backport this for parity with 21.0.10-oracle.

Simple resolves:
verifyer.cpp: removal of large chunk by hand.
verifyer.hpp: Copyright

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

Commit messages:
 - backport 1bd814c3b24eb7ef5633ee34bb418e0981ca1708

Changes: https://git.openjdk.org/jdk21u-dev/pull/2385/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=2385&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8364660
  Stats: 467 lines in 19 files changed: 103 ins; 346 del; 18 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/2385.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/2385/head:pull/2385

PR: https://git.openjdk.org/jdk21u-dev/pull/2385