chainparams: remove hardcoded signet seeds

Author: jonatack

src/kernel/chainparams.cpp

@@ -426,10 +426,6 @@ class SigNetParams : public CChainParams {
             vSeeds.emplace_back("seed.signet.bitcoin.sprovoost.nl.");
             vSeeds.emplace_back("seed.signet.achownodes.xyz."); // Ava Chow, only supports x1, x5, x9, x49, x809, x849, xd, x400, x404, x408, x448, xc08, xc48, x40c
 
-            // Hardcoded nodes can be removed once there are more DNS seeds
-            vSeeds.emplace_back("178.128.221.177");
-            vSeeds.emplace_back("v7ajjeirttkbnt32wpy3c6w3emwnfr3fkla7hpxcfokr3ysd3kqtzmqd.onion:38333");
-
             consensus.nMinimumChainWork = uint256{"000000000000000000000000000000000000000000000000000002b517f3d1a1"};
             consensus.defaultAssumeValid = uint256{"000000895a110f46e59eb82bbc5bfb67fa314656009c295509c21b4999f5180a"}; // 237722
             m_assumed_blockchain_size = 9;