Change Details

In all rest/rpc-related modules, if there are multiple calls to `ActiveChain{,State}()`, and the calls fall under the same `::cs_main` lock, we can simply take a local reference and use/reuse it instead of calling `ActiveChain{,State}()` again and again. This concludes backport of core#21391 [14/14] https://github.com/bitcoin/bitcoin/pull/21391/commits/586190f0b4740457cb86cba632e3d64e6dfe9b0c Depends on D11588

In all rest/rpc-related modules, if there are multiple calls to `ActiveChain{,State}()`, and the calls fall under the same `::cs_main` lock, we can simply take a local reference and use/reuse it instead of calling `ActiveChain{,State}()` again and again. This concludes backport of [[https://github.com/bitcoin/bitcoin/pull/21391 | core#21391]] [14/14] https://github.com/bitcoin/bitcoin/pull/21391/commits/586190f0b4740457cb86cba632e3d64e6dfe9b0c Depends on D11588

In all rest/rpc-related modules, if there are multiple calls to `ActiveChain{,State}()`, and the calls fall under the same `::cs_main` lock, we can simply take a local reference and use/reuse it instead of calling `ActiveChain{,State}()` again and again. This concludes backport of [[https://github.com/bitcoin/bitcoin/pull/21391 | core#21391]] [14/14] https://github.com/bitcoin/bitcoin/pull/21391/commits/586190f0b4740457cb86cba632e3d64e6dfe9b0c Depends on D11588