rpc: remove deprecated getaddressinfo `labels: purpose`

src/wallet/rpcwallet.cpp

@@ -3753,12 +3753,7 @@ UniValue getaddressinfo(const JSONRPCRequest& request)
                         {RPCResult::Type::ARR, "labels", "Array of labels associated with the address. Currently limited to one label but returned\n"
                             "as an array to keep the API stable if multiple labels are enabled in the future.",
                         {
-                            {RPCResult::Type::STR, "label name", "The label name. Defaults to \"\"."},
-                            {RPCResult::Type::OBJ, "", "label data, DEPRECATED, will be removed in 0.21. To re-enable, launch bitcoind with `-deprecatedrpc=labelspurpose`",
-                            {
-                                {RPCResult::Type::STR, "name", "The label name. Defaults to \"\"."},
-                                {RPCResult::Type::STR, "purpose", "The purpose of the associated address (send or receive)."},
-                            }},
+                            {RPCResult::Type::STR, "label name", "Label name (defaults to \"\")."},
                         }},
                     }
                 },
@@ -3822,13 +3817,7 @@ UniValue getaddressinfo(const JSONRPCRequest& request)
     UniValue labels(UniValue::VARR);
     const auto* address_book_entry = pwallet->FindAddressBookEntry(dest);
     if (address_book_entry) {
-        // DEPRECATED: The previous behavior of returning an array containing a
-        // JSON object of `name` and `purpose` key/value pairs is deprecated.
-        if (pwallet->chain().rpcEnableDeprecated("labelspurpose")) {
-            labels.push_back(AddressBookDataToJSON(*address_book_entry, true));
-        } else {
-            labels.push_back(address_book_entry->GetLabel());
-        }
+        labels.push_back(address_book_entry->GetLabel());
     }
     ret.pushKV("labels", std::move(labels));
 

test/functional/rpc_getaddressinfo_labels_purpose_deprecation.py

@@ -1,48 +0,0 @@
-#!/usr/bin/env python3
-# Copyright (c) 2020 The Bitcoin Core developers
-# Distributed under the MIT software license, see the accompanying
-# file COPYING or http://www.opensource.org/licenses/mit-license.php.
-"""
-Test deprecation of RPC getaddressinfo `labels` returning an array
-containing a JSON object of `name` and purpose` key-value pairs. It now
-returns an array containing only the label name.
-
-"""
-from test_framework.test_framework import BitcoinTestFramework
-from test_framework.util import assert_equal
-
-LABELS_TO_TEST = frozenset({"" , "New 𝅘𝅥𝅯 $<#>&!рыба Label"})
-
-class GetAddressInfoLabelsPurposeDeprecationTest(BitcoinTestFramework):
-    def set_test_params(self):
-        self.num_nodes = 2
-        self.setup_clean_chain = False
-        # Start node[0] with -deprecatedrpc=labelspurpose and node[1] without.
-        self.extra_args = [["-deprecatedrpc=labelspurpose"], []]
-
-    def skip_test_if_missing_module(self):
-        self.skip_if_no_wallet()
-
-    def test_labels(self, node_num, label_name, expected_value):
-        node = self.nodes[node_num]
-        address = node.getnewaddress()
-        if label_name != "":
-            node.setlabel(address, label_name)
-            self.log.info("  set label to {}".format(label_name))
-        labels = node.getaddressinfo(address)["labels"]
-        self.log.info("  labels = {}".format(labels))
-        assert_equal(labels, expected_value)
-
-    def run_test(self):
-        """Test getaddressinfo labels with and without -deprecatedrpc flag."""
-        self.log.info("Test getaddressinfo labels with -deprecatedrpc flag")
-        for label in LABELS_TO_TEST:
-            self.test_labels(node_num=0, label_name=label, expected_value=[{"name": label, "purpose": "receive"}])
-
-        self.log.info("Test getaddressinfo labels without -deprecatedrpc flag")
-        for label in LABELS_TO_TEST:
-            self.test_labels(node_num=1, label_name=label, expected_value=[label])
-
-
-if __name__ == '__main__':
-    GetAddressInfoLabelsPurposeDeprecationTest().main()

test/functional/test_runner.py

@@ -240,7 +240,6 @@ BASE_SCRIPTS = [
     'p2p_permissions.py',
     'feature_blocksdir.py',
     'feature_config_args.py',
-    'rpc_getaddressinfo_labels_purpose_deprecation.py',
     'rpc_getdescriptorinfo.py',
     'rpc_help.py',
     'feature_help.py',