Merge bitcoin/bitcoin#22650: Remove -deprecatedrpc=addresses flag and corresponding code/logic

43cd6b8af9 doc: add release notes for removal of the -deprecatedrpc=addresses flag (Michael Dietz)
2b1fdc2c6c refactor: minor styling, prefer snake case and same line if (Michael Dietz)
d64deac7b8 refactor: share logic between ScriptPubKeyToUniv and ScriptToUniv (Michael Dietz)
8721638daa rpc: remove deprecated addresses and reqSigs from rpc outputs (Michael Dietz)

Pull request description:

  Resolves #21797 now that we've branched-off to v23 ("addresses" and "reqSigs" deprecated) "ExtractDestinations" should be removed.

   `-deprecatedrpc=addresses` was initially added in this PR #20286 (which resolved the original issue #20102).

  Some chunks of code and logic are no longer used/necessary with the removal of this, and therefore some minor refactoring is done in this PR as well (separated commits)

ACKs for top commit:
  MarcoFalke:
    re-ACK 43cd6b8af9 🐉
  meshcollider:
    Code review ACK 43cd6b8af9
  jonatack:
    ACK 43cd6b8af9 per `git range-diff a9d0cec 92dc5e9 43cd6b8`, also rebased to latest master, debug built + quick re-review of each commit to bring back context, and ran tests locally at the final commit

Tree-SHA512: fba83495e396d3c06f0dcf49292f14f4aa6b68fa758f0503941fade1a6e7271cda8378e2734af1faea550d1b43c85a36c52ebcc9dec0732936f9233b4b97901c

test/functional/test_runner.py

@@ -304,7 +304,6 @@ BASE_SCRIPTS = [
     'feature_presegwit_node_upgrade.py',
     'feature_settings.py',
     'rpc_getdescriptorinfo.py',
-    'rpc_addresses_deprecation.py',
     'rpc_help.py',
     'feature_help.py',
     'feature_shutdown.py',