remove no longer needed check for premature v2 txs

Author: morcos

src/validation.cpp

@@ -540,14 +540,6 @@ bool AcceptToMemoryPoolWorker(CTxMemPool& pool, CValidationState& state, const C
     if (tx.IsCoinBase())
         return state.DoS(100, false, REJECT_INVALID, "coinbase");
 
-    // Don't relay version 2 transactions until CSV is active, and we can be
-    // sure that such transactions will be mined (unless we're on
-    // -testnet/-regtest).
-    const CChainParams& chainparams = Params();
-    if (fRequireStandard && tx.nVersion >= 2 && VersionBitsTipState(chainparams.GetConsensus(), Consensus::DEPLOYMENT_CSV) != THRESHOLD_ACTIVE) {
-        return state.DoS(0, false, REJECT_NONSTANDARD, "premature-version2-tx");
-    }
-
     // Reject transactions with witness before segregated witness activates (override with -prematurewitness)
     bool witnessEnabled = IsWitnessEnabled(chainActive.Tip(), Params().GetConsensus());
     if (!GetBoolArg("-prematurewitness",false) && !tx.wit.IsNull() && !witnessEnabled) {