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

doc/release-notes.md

@@ -64,6 +64,12 @@ P2P and network changes
 Updated RPCs
 ------------
 
+- The `-deprecatedrpc=addresses` configuration option has been removed.  RPCs
+  `gettxout`, `getrawtransaction`, `decoderawtransaction`, `decodescript`,
+  `gettransaction verbose=true` and REST endpoints `/rest/tx`, `/rest/getutxos`,
+  `/rest/block` no longer return the `addresses` and `reqSigs` fields, which
+  were previously deprecated in 22.0. (#22650)
+
 New RPCs
 --------