These were deprecated in #17578 and #17585, with expected 0.21 removal notified in the 0.20 release notes.
0- The `getaddressinfo` RPC has had its `label` field deprecated
1 (re-enable for this release using the configuration parameter
2 `-deprecatedrpc=label`). The `labels` field is altered from returning
3 JSON objects to returning a JSON array of label names (re-enable
4 previous behavior for this release using the configuration parameter
5 `-deprecatedrpc=labelspurpose`). Backwards compatibility using the
6 deprecated configuration parameters is expected to be dropped in the
7 0.21 release. (#17585, [#17578](/bitcoin-bitcoin/17578/))