RFR: 8308236: Remove SystemDictionaryShared::clone_dumptime_tables() [v2]

[Ioi Lam]

> This function was necessary because we were patching the pointers inside `SystemDictionaryShared::_dumptime_table` when dumping the CDS archive. We no longer do that since [JDK-8307567](https://bugs.openjdk.org/browse/JDK-8307567), so this function and related code can be removed.

Ioi Lam has updated the pull request incrementally with one additional commit since the last revision:

  @calvinccheung comment: remove unused copy_shared_path_table()

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Changes:
  - all: https://git.openjdk.org/jdk/pull/14020/files
  - new: https://git.openjdk.org/jdk/pull/14020/files/7acaf92d..fd76e923

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=14020&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=14020&range=00-01

  Stats: 3 lines in 2 files changed: 0 ins; 1 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/14020.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/14020/head:pull/14020

PR: https://git.openjdk.org/jdk/pull/14020