message: Remove txindex usage from mempool since it does no rule checks anyway
diff: @@ -842,24 +842,6 @@ bool AcceptToMemoryPoolWorker(CTxMemPool& pool, CValidationState& state, const C
  fSpendsCoinbase = true;
  break;
  }
  -
  - COutPoint prevout = txin.prevout;
  - CMutableTransaction txPrev;
  - std::shared_ptr<const CTransaction> ptx = mempool.get(prevout.hash);
  - if(ptx)
  - {
  - txPrev = *ptx;
  - }
  - else
  - {
  - CDiskTxPos txindex;
  - if (!ReadFromDisk(txPrev, txindex, *pblocktree, prevout))
  - return state.DoS(100, error("%s : previous transaction not found", __func__), REJECT_INVALID, "bad-txns-not-found");
  - }
  -
  - if (txPrev.vout[prevout.n].IsEmpty())
  - return state.DoS(1, error("%s : special marker is not spendable", __func__), REJECT_INVALID, "bad-txns-not-spendable");
  -
  }
  CTxMemPoolEntry entry(ptx, nFees, nAcceptTime, dPriority, chainActive.Height(),
  