Remove -deprecatedrpc=addresses flag and corresponding code/logic

[mjdietzx]

The following RPCs: gettxout, getrawtransaction, decoderawtransaction,
decodescript, gettransaction, and REST endpoints: /rest/tx,
/rest/getutxos, /rest/block deprecated the following fields (which are no
longer returned in the responses by default): addresses, reqSigs.
The -deprecatedrpc=addresses flag must be passed for these fields to be
included in the RPC response. This flag/option will be available until v23, at which
point the deprecation will be removed entirely. Note that these fields are attributes of
the scriptPubKey object returned in the RPC response. However, in the response
of decodescript these fields are top-level attributes, and included again as attributes
of the scriptPubKey object.

The original issue #20102 was resolved in this PR #20286, and from v23 ("addresses" and "reqSigs" deprecated) "ExtractDestinations" should be removed.

[mjdietzx]

Intent is to add this issue to milestone 23.0. Not sure how to do this or if I'm able to

[maflcko]

Branch-off will be in about 60 days (#20851), after which this patch can be merged. Do you want to address this issue yourself or did you file this for someone else to pick up?

[mjdietzx]

I'd be happy to address the issue myself. Just figured I'd create an issue to make sure it isn't forgotten. Anyways I'll aim to have it ready around branch-off and open the PR then

[maflcko]

@mjdietzx Are you still working on this?

[mjdietzx]

Yessir, thanks for the heads up. Just opened the PR 😁