rpc: Do not advertise dumptxoutset as a way to flush the chainstate
rpc: Do not advertise dumptxoutset as a way to flush the chainstate

Github-Pull: #18809
Rebased-From: fac0cf6e5513df1402068df113d496b4e03a4bdc

peercoin/peercoin,DigitalPandacoin/pandacoin,DigitalPandacoin/pandacoin,DigitalPandacoin/pandacoin,DigitalPandacoin/pandacoin,peercoin/peercoin,peercoin/peercoin,DigitalPandacoin/pandacoin,DigitalPandacoin/pandacoin,peercoin/peercoin,peercoin/peercoin,peercoin/peercoin